Seat belts are sooooooo easy! I buckle mine sub-consciously and never have issues.
I can only think of these reasons not to buckle:
1. Too old to know what a seat belt is and unable to comprehend the technology.
2. Too fat to get that thing on (as seen in any WalMart parking lot).
3. Too stupid to make it a habit (as seen at any high school parking lot).
4. Unable or unwilling to understand odds of accident survival.
I can only think of these reasons not to buckle:
1. Too old to know what a seat belt is and unable to comprehend the technology.
2. Too fat to get that thing on (as seen in any WalMart parking lot).
3. Too stupid to make it a habit (as seen at any high school parking lot).
4. Unable or unwilling to understand odds of accident survival.