In order to get a look at this topic, Arthur W. Pink writes concerning the "Human Will":
"In any treatise that proposes to deal with the human will, its nature and functions, respect should be had to the will in three different men, namely, unfallen Adam, the sinner, and the Lord Jesus Christ. In unfallen Adam the will was
free, free in
both directions, free toward good and free toward evil. Adam was created in a state of
innocency, but not in a state of holiness, as is so often assumed and asserted. Adam’s will was therefore in a condition of moral equipoise: that is to say, in Adam there was no constraining
bias in him toward either good or evil, and as such, Adam differed radically from all his descendants, as well as from “the Man Christ Jesus.” But with the sinner it is far otherwise. The sinner is born with a will that is
not in a condition of moral equipoise, because in him there is a heart that is “deceitful above all things and desperately wicked”, and this gives him
a bias toward evil. So, too, with the Lord Jesus it was far otherwise: He also differed radically from unfallen Adam. The Lord Jesus Christ
could not sin because he was “the Holy One of God.” Before he was born into this world it was said to Mary, “The Holy Spirit shall come upon thee, and the power of the Highest shall overshadow thee: therefore also
that Holy Thing which shall be born of thee shall be called the Son of God” Luke 1:35. Speaking reverently then, we say, that the will of the Son of Man was
not in a condition of moral equipoise, that is, capable of turning toward either good or evil. The will of the Lord Jesus was
biased toward that which is good because, side by side with his sinless, holy, perfect humanity, was his eternal Deity. Now in contradistinction from the will of the Lord Jesus which was biased toward good, and Adam’s will which, before his fall, was in a condition of moral equipoise — capable of turning toward either good or evil — the
sinner’s will is biased toward evil, and therefore is free in one direction only, namely, in the direction of evil. The sinner’s will is
enslaved because it is in bondage to and is the servant of a depraved heart."
Source
How is this important?
Rule 1: This was not offered as an excuse to debate the issue of "free-will".
Rule 2: This shows us just how different Adam and Jesus were.
Now, there were no children born prior to Adam's sinning.
Therefore, when Adam sinned and was driven out of the Garden because of that, every child, boy or girl, has since been born with a "sin nature". If you don't accept that, then perhaps one should read Psa. 58:3.
God Bless
Till all are one.