Thats true but if you were talking about that being the norm long long ago does it really matter that I am younger than you? Does that invalidate my experience somehow?

I meant that we moved out and were expected to move out. Though I forgot to mention that my parents separated so we both left our mom around 16. My Dad I ended up staying with when I was struggling a little but it was heavily stigmaized back then.. so even though I did stay with family after 18 I wouldn't say it was common or expected. I got a lot of grief from neighbors, friends and random strangers. It was less stigmaized when I told them I had broke my arm but even then it was easier not to bring it up.