Just as Montalban has stated, we would have to examine this one for being factual.
In semitic culture, the age of marriage
"usually at the outset of puberty or around the age of 13"[/quote]
You are confusing what God tolerated opposed to what God's standards are.
Maybe I am. May I ask you, what's God's standard to you?
Throughout the OT, people had harems and plenty of concubines. These were not God's allowances; rather man's implementation of acceptable relationships. This is precisely why Christians and Jews are told not to emulate prophets or any other people who may look pious in our eyes. That is why Christians have issues with Mohammad. Muslims don't have that kind of compass guiding them. Muslims are more compliant to obedience through actions, whereas Christians are to be more discerning of the actions that they practice because all people are imperfect in their spiritual nature, so, we should examine them by God's standards--not by what a presumed prophet says necessarily.
What a messenger of God do is to deliver God's message.
Often in Quran, God invite us to think and use our judgement. (e.g: to be modest; how modest? It depends on our needs and judgment unless God specified what is called as exessive/out of bound). Prophets example is example. It's up to us to take their example but it should depends on our situation, needs, etc.
In Islam The basic is permissable and it can be changed to haram(fprbidden), wajib(obligation), etc depends on revelation, situation,etc.
We must have an outside means of judging. This is lacking in Islam. It is either follow Mohammad or else suffer the consequences of not being obedient to his example. In my eyes, that is not something that I would trust.
Muslims are free not to take Muhammad's example(unless certain things like how to perfom Solat, etc). We're not considered guilty to eat dhab(a desert lizard) just because Muhammad didn't eat dhab.
The main difference here is that Christians don't emulate what men do, even if that person is considered a prophet. We follow Jesus, who is God incarnate. Even when following Jesus, we not seek to emulate his actions; for, that would be just what you do with Mohammad. We follow his teachings which are relational to God and man. They are not based on customs and traditions.
From I'd learned, Christians should follow Jesus example and actions (e.g: 1 Peter 2:21-24, John 13:14-15). For example. Jesus drank wine. But what kind of wine that Jesus drank that is consider permissable? Most Christians will use Jesus' example and actions on that particular matter along with other matters .
About customs and tradition, we didn't fully follow Arab's tradition(since Muhammad was an Arab). Chinese Muslims will do the wedding based on their traditions likewise other races. Like wearing turban, it's up to individual to wear turban if they feel like wearing it. So they adopted wearing Arab's garment. But that's how the world goes. We assimilate others traditions and customs. But Muslims are aware what is Muhammad's traditions and what is God's command.
There lies the problem--you get to pick and choose what actions you can partake in. You can selectively choose what is politically correct for a specific time and ignore his other actions that are not in good taste today. Regardless, those other actions are still part of Mohammad's example. They can be practiced if chosen.
That's what examples are. When Muhammad said, practice swim and horseback riding for health, what we've learned? Only swimming and horseback riding are permissable in islam? Of course not.
Like I said in my previous post, they can be practised. But after some serious considerations. We don't blindly marry our child when the reached puberty because that's what Muhammad do. We should consider their maturity, their readiness, what mostly the outcome of the marriage, etc because one of the purpose in mariage is to gain tranquility. I don't think it'll be a happy marriage if they're not ready.
As Montalban has stated, puberty is not the sign that a woman or man is mature for marriage and other decisions that a more mature adult should be equipped to make. There is also the emotional/psychological and spiritual aspects that need to be mature.
And I agreed. And Islamic teachings agreed too.
The bottom line is that you are left with Mohammad's examples to follow; so, there is a lot of gray area to use to practice exactly what he did. Is there anywhere in the Qu'ran where Allah tells you not to follow Mohammad's actions and use scrutiny as well as use your best or better judgment on issues of life? Does Allah allow you to ignore any of Mohammad's actions?
Allah often invite us to think and use reasonable judgement. For example in Sura 42:38
and who respond to [the call of] their Sustainer and are constant in prayer; and whose rule [in all matters of common concern] is consultation among themselves; and who spend on others out of what We provide for them as sustenance;
Yup, Allah allow us to not follow Muhammad's actions as long as it's not against Islamic teachings(which why they're are called sunnah, not obligations). But Muslims will always looked up Muhammad as their role model. That's for certain.
I don't discount that times are different, but my issue has to do with your perfect example for all time, Mohammad. As far as I can see, there is no distinction between his actions and Allah's moral standards. Allah's standards are restricted to a large degree by an imperfect creature--Mohammad.
There is more that I could say, but I will let this be it for now. I am looking forward to your responses once you get time, of course.
Allah's standard is in Quran and Hadith Qudsi (this is merely my POV).
For example Sura 42:39-41:
and who, whenever tyranny afflicts them, defend themselves.
But [remember that an attempt at] requiting evil may, too, become an evil: hence, whoever pardons [his foe] and makes peace, his reward rests with God for, verily, He does not love evildoers.
Yet indeed, as for any who defend themselves after having been wronged no blame whatever attaches to them:
And from hadiths, sometimes Muhammad will defend himself and sometimes he'll pardon.
Or in hadith Qudsi:
"
Where are those who love one another through My glory? Today I shall give them shade in My shade, it being a day when there is no
shade but My shade."
Love through His glory. But sometimes, imperfect Mr.A loves Mr.B because he's his relative.
Or loves a cat because it's cute and adorable

.