Sarah, how many times do I have to say this? Peter Parker in the comics hasn't been a teenager since the Nixon administration
Peter hasn't been a teenager since 8-track tapes were around.
Peter hasn't been a teenager since before the American Bicentennial. Peter hasn't been a teenager since The Brady Bunch and The Partridge Family were on TV. Peter hasn't been a teenager since before there was a 55 mph speed limit.
Peter's adolescence was bookended between his first appearance in Amazing Fantasy #15 in 1962, when his uncle Ben Parker was shot and killed, and the death of his girlfriend, Gwen Stacy, in The Amazing Spider-Man #121 in 1973 when Peter was in college. From that point on he was a 20-something adult all through the late 70's and through the 80's, 90's, and 2000's. The last two generations over the last 40 years have grown up knowing the adult Peter Parker, which encompasses the greatest Spider-Man stories ever told(most of them in the 80's). So the movies always making him a punk teenager is an insult.