As Larkin said ' They fuck you up your mum and dad/They may not mean to, but they do'...
There's a lot of anxiety created for parents - well, for mothers especially, thanks Patriarchy - that things we do or say or don't do or don't say 'damage' our kids. And I think there are things about all our parenting that causes what the media might call 'damage' to our kids, but what does that really mean?
At the end of the day, unless we are actually serious cruel or neglectful, what this means is that our parenting style might mean our kids might grow up oversensitive to criticism, not great at intimacy, have a bad temper, be shy, talk too much, find it a bit hard to trust people or whatever. But you know what? They'll still have relationships, hold down jobs and have satisfying lives despite those traits.
I think parents need to forgive themselves more - yes, our actions do have an impact on our kids, some of it negative, but the negatives are extremely unlikely to be devastating in the normal course of things.