BSD – no, i am not that familair with European Jews fin di alteh heim – i have no idea what that means btw, but i think i get what you meant from your next sentance…
however i do have it from my grandparets that when they were young and when their grandparents were young… when 30 year old men married 15 year old girls they didn’t have this problem. i dont know why that would be though as you say that this problem DID exist in Europe of old.