What is it with teenagers in middle school?

Already in middle school, kids at the age of 12 and 13 are making out when I haven't had my first kiss yet (about to be 15 in 5 months, going to 9th in 5 months) Kids at 12-14 already had , smoked weed, drank, 20 different cell phones, fashion statement, kids already felt each other and think that it's the one and then by high school the girl is already pregnant! Girls at 9-14 worry about their ual appeal and guys worry about if can bang a girl before high school! Most of them don't gives you fu*cks whether or not they have good grades or have good, caring parents. Do u think I'm missing out on stuff that kids are doing now?