I generally agree, UNLESS there is a possibility of them finding out from someone else.
There are mistakes I made as a youth that no one else knows about and no one ever will. Then there are mistakes that I made that were known to other family members. I told my children about these because I did not want them to someday hear about them from a cousin.
It got me thinking about a friend of mine from long ago who I just reconnected with. She had an abortion when I knew her (cut me off when I objected) but now has grown daughters. I’d cut my tongue out before telling them. Unfortunately, my friend is probably still happily pro-abortion and has probably told her kids. As a parent, I just couldn’t do that. Just me, I’m afraid.