@Three-Eyed-Crow I love bikes. In addition to everything @Arkandel suggested, I would offer that you might consider getting a road bike, if your main use is going to be on pavement. Someone might suggest a hybrid, but my experience is that I'm basically a sail in the wind; being hunched over the handlebars would be vastly superior. If you want to go out to do trailriding, you can always look around for a second-hand trail bike. Honestly, they're far more common and far less expensive than a road bike, so unless you have storage space concerns, owning a second bike for the occasional off-road experience isn't that bad a thing.
See, hybrids have the skinny tyres of a road bike with the uprightness of a mountain bike. The problem is they're difficult to use if the trail you're on is gravelly while also being upright for the wind (as previously mentioned)
Oh! Get a U-lock. No, a thick cable is not the same. Get a U-lock. I can't stress that enough.
