>>82122358 (OP)
>What were the people age16-22 doing in 80s/90s in their free time before internet access was widespread
Well I was what was known as a nerd, so I had nerdy hobbies like painting Dungeons & Dragons miniatures and building model kits. I also read a lot more, and I'd spend a lot of time in used bookstores, browsing through stacks of old paperbacks, mostly science fiction and sword and sorcery stuff.
In the 80s gaming consoles sucked and were outrageously expensive, so if you wanted to play videogames you had to get on your bicycle and ride down to the arcade. The games cost a quarter, which coincidentally was the same price as a chocolate bar or a bag of chips. These games were designed to kill you off as quickly as possible so you had to put in another quarter and start over. I always ran out of money before I got any good at these games, and I didn't master any of them until decades later when MAME was a thing and I could play them for free on my computer often using cheat codes like Infinite Lives.
To fill up the rest of our free time we had this thing called "hanging out", which was where you were with a group of your friends but you weren't actually doing anything. Popular places to hang out included the food court at the mall, the arcade, and the parking lot at 7-11. We also used to hang out in parks sometimes, but only after dark. Sometimes we'd all hang out at a friend's house, usually the friend who's parents house had a rec room in the basement. A popular thing to do in rec rooms was rent a bunch of movies on VHS tapes from the local video store and watch them together. Even nerds hung out together, because before the internet it was unbearably lonely and boring to sit at home by yourself for too long. Like really, you have no idea how awful that was.