A 2021 study by the Census revealed that childless adults age 55 and older had a median net worth of $153,900 compared to $130,400 for biological parents.
A person an regret having children or missing out on the (childless) life they might have had without regretting the human beings who are their children. Those are just... different things.
Maybe not to you, but plenty of us are secure enough in our existence to have honest conversations with our parents about these things. I hope you get there some day, friend.