A son does not learn how to become a son until he becomes a father.
I just wished I'd settled down earlier. My kids were all born after the passing of my dad and stepdad. But I've learned a valuable lesson from that. I've told my two oldest, that there will be times in their lives when they say something to me or their mother that they really didn't mean.
I tell them not to worry about it, that our love for them is unconditional. And when we pass on, to not feel guilty about past wrongs, because they've already been forgiven.
Simultaneously, I ask God for strength as they unwittingly attempt to send me to an early grave!
I've already warned them about the parental intelligence curve. I told them if they would make a chart with the age of a kid horizontally and the parent's I.Q. vertically and charted out the parent's intelligence over time --- they'd discover some interesting things.
From the earliest on to middle school, dad and mom know everything and so the line starts high and stays high to about age 12. Then we parents lose our minds. We become hopelessly ignorant and stay that way until the child is about 21.
Then we start regaining our mental abilities, year by year until the child has a kid of his own and the curve shoots up abruptly. My daughter is married but childless, so my I.Q. is about 50% of its peak. LOL!