What do you think about this?
"i'm sorry if your experiences are different. "
I think it can happen when they become mobile.
That is a big difference where we live. Out in the burbs, people have to drive their kids everywhere as you describe, but in town, the kids get around by themselves, either on foot or with public transportation.
The way I read it, that is what she is sorry about, that you and your children have not had the experience of a curfew.