When leasing, do you have to be extra-careful with not dirtying/brushing/hitting the exterior or interior? The whole experience of owning is having much less to worry about being “told off by the parents” when you give it back.
Wear and tear is expected. If you get in an accident, you have it repaired just like you would if you owned it. If you beat it to hell then you can expect an adjustment to the value, just as if you tried to sell your own car after treating it that way. As long as it doesn't have collision damage, tires that are bald to unsafe levels, or a trashed interior, the guy at the dealer you hand the keys to is unlikely to care (it's not like the dealer owns it). They're just going to ship it off to auction and the detailers will clean it up and resell it.