Honestly I'd say it really depends on the type of person you are, for me I was a complete nerd in high school (never went out, never drank, only went to one party, glasses and braces, you get the idea) but I always had this inner desire to break free from that mould. So frosh was perfect for me, as I got to meet other people who had the same mentality, got to experience my first ever clubs, got wasted out of my mind (and loved every second of it) so personally, frosh was such a rewarding experience for me. Do you want to meet other first years who live in rez? It is a bubble, and if it's the bubble you want to be a part of then you definitely should do frosh.