Oh, I don't know... why does the military name it's ships? Why does NASA name their missions. Why do we name planets and stars?
So I would like to go on board as saying naming a vehicle is in no way LAME or STOOPID or RIDICULOUS. People have been naming things from the get go, so quick yer complaining because this is what we do. Do you get it, Enola Gay?
It's called anthropomorphism, the practice of suggesting human characteristics for animals or other inanimate objects - like a car, boat, plane or rocket or spaceship for that matter. So, yeah, people will name their scooters. Why this should offend anyone is beyond me. Nuf said.