Age difference

Hi! First of, I'd like to thank you for taking the time to read my post! :) I am a 19 year old guy, and I'm kind of into a guy who's 16, and I am not sure how I feel about it. My friends have very different opinions on it. Some say that I am far too old for him, and others say that it's a completely normal age difference. I appreciate any feedback! Thanks :)