I guess I am alone in this opinion, but I think it is kind of gross. I am not the type to usually judge, but that is a huge age difference. If a woman is only 18 or 19, I think she is too young to date someone that old. She should date someone younger and be carefree.
Since I am in my 30s, I know how drastically a person changes during those years. Also, I've known men older than me that are total pervs and go after girls like that. Nothing good ever comes from it.