The only reason why you wouldn't wear a seatbelt is laziness, meaning there is no good reason as to why you shouldn't wear one. That being said, I voted seatbelts are for communists cause it made me chuckle.
Regardless, a second's worth of effort is much more preferable to death/fines/horrible injuries.
Regardless, a second's worth of effort is much more preferable to death/fines/horrible injuries.