I guess this depends on the maturity level of the 2 involved in the relationship. Okay, I got my age wrong, I'm 16, but I'm not going to make an account just to have my real age and start over. 😂 Anyway, my boyfriend will turn 18 this summer (I will turn 17 in November though, so it's not like I turn 16 this year, but still) and we are just fine.
I'm 18 and my boyfriend is 16. He'll be 17 in a week or two. I don't think it's that big a deal with that age range. If it were 15 and 18, then ehhh, a little uncomfortable. 16 and 18, tho? I don't see a problem.