Here's my thoughts...
People don't HAVE TO ride something else when they quit riding scooters.
Everyone i say i quit to says "Oh, so what are you going to ride now...?" My response is ALWAYS, "Why the hell do i have to ride something else because i quit scooters?"
Back on topic -
I was always 'planning' on quitting, because scooters were just so boring and i didn't like riding anymore. But i didn't really have anything to do on weekends and stuff. Until about 2 months ago anyway, and i found this amazing girl <3, so now i have something to 'do' on weekends, and school + work pretty much rules my weekdays.
So yeah, my life is full and scooters just don't appeal to me anymore, who's to say i won't pick it back up in a few months and say "What the hell?, i'll just go to the park for an hour", then get back into it from there.
But for now, i've quit for good, and don't plan on riding once every month or anything like that.