Don’t assume a curiosity about ones biological parents signifies anything other than plain simple curiosity. It’s not indicative of problems!
I don’t assume. I respond to people I meet who have told me information almost identical to yours; and I have known children who have had significant, long term (many years) issues, not so much with their additive parents, but with being adopted.
You are graced and I not only am pleased to hear that, but also would not suggest that you should be otherwise. And thank you for chiming in on the question.
I am currently watching a family which adopted 4 children. The oldest seems to take to the issue as you have, the next two seem to be having significant difficulties; and I cannot asses the fourth - though she seems quite stable.
Some adoptive children appear to be disniteressted in their natural parents; some are curious, and some seem to carry a disturbance that they did not grow up with their natural family.
I was addressing the OP, which posited the question should single parents give their children up for adoption.
My answer would be maybe, in some circumstances, but most definitely not all.
Your situation also differs fro others, where a parent becomes a “single parent” due to death of the spouse or divorce; and statistically it is highly unlikely that the child or children will be three days old. I am not sure who “thunk up” the question, but it is not a well-formed opinion/question.
God bless!.