No he wasn't I just posted a page that said he was 18 in Uncanny 157(1982). His age wasn't specified before then, but it's reasonable to assume he was about 16 when he joined in Giant Sized. He was still 19 when he and Kitty broke up after Secret Wars in Uncanny 183(1984), you know, the issue where Logan let Juggernaut beat him up for breaking up with Kitty. They were like a HS freshman and senior dating. A bit strange, but not crazy, and they never had sex back in the day, they were just being bashful kids. I don't know why people harp on this, and throw out false information to try and push their point. Neither Kitty or Piotr are even in this book??