I haven’t been to a drive in theater in about 35 years. To be honest they weren’t a very good place to see a movie. The sound was the shits, the car could be uncomfortable, popcorn got all over the place.
There were two advantages to drive-ins: you could fool around with someone (but really, a bedroom was a lot better) and you could drink while watching the movie with your buds. Beyond that, there wasn’t much justification. Yeah, sure,if you couldn’t get a sitter, but then it was just killing time because there wasn’t anything parents could do in a car with the kid(s) there that they couldn’t do at home.