Considering taking the july 13 or 17 Impressions tour. I'm 18 from Canada, am I too young for this tour? It seems like majority are older, because it is a superior tour

You're never too young (or too old for that matter) on a Contiki tour as long as you're ready and willing to have fun! I am on the July 13th tour and getting excited about going. This will be my 3rd tour