I think we can and do learn from atheists and people with different worldviews. And it's not the learning that can be a problem -- it's how we utilize that new knowledge that can be a problem.
It's a matter of choices. We can only choose for ourselves and of course, underage children, but they have to fly the coop and become their own adult people.
Praying for atheists is probably one of the best things to do for them. I'm a police officer and I've run into a few of them. You have to be very careful in choosing your words. You don't want to get in their faces and scream that they will burn in Hades, because they'll think you're a looney. You have to be gentle and above all, kind.
Be an example of Christ's love. The atheists I've run into are usually very smart, well-educated, and successful in their career and home. Give them credit for what they are, and that opens a door for a conversation about God. Don't tell them they're lucky -- they are in their minds, but we know they're blessed and use the word "blessed."
I've known four atheists. Only one has come around to Christ and is now (believe it or not) a Catholic. Never underestimate the power of nuns! But it doesn't matter -- he's a Christian now, and he's saved. The other 3 I see around town sometimes, and they haven't crossed that threshold but allow me to pray for them. I do it anyway, but they know it.
Just remember to be kind, patient, and steadfast. Don't compromise your walk with God or your Christian values, because if you do, that's a dark road full of doubt and confusion. Life is tough enough without self-imposed issues.
And you know you've won a little battle of trust when they call you their favorite cop, even when you have to gently arrest their cousin for drunk driving and wiping out a fire hydrant.
Kept on the straight and narrow, and keep praying. Ask God for guidance, and He will lead you safely with no worries.
Just my take on this.