User blog comment:Lemamamn/WHY SEASON 6 IS OBVIOUSLY FANS VS FAVS/ WHO I WANT BACK/@comment-24259216-20170518192852/@comment-11883116-20170518232635

We know thanks to Cameron's and Leonard's ages. Since all first gen cast contestants were also 16 in their first season, this means all contestants per the next two generations are, especially since it's confirmed in two cases.