I have known Americans who were at fault in accidents (light fender benders). They didn't deny it either, it was apparent in most cases that it could have only happened one way, but again they didn't have an issue with it. Insurance adjusters handled it and they only paid something if they had damage to their own vehicle (and wanted to get it fixed). It was just as if it happened between two Mexicans. Surprising to the Americans I knew, they were so shocked as to how the system was completely opposite what they expected, because the Mexican ended up being nice about the situation.

On a side note, often it was a decent deal for the Mexican, because they often knew someone who could fix the vehicle for MUCH less than the cost of the check that was cut, and pocketed the extra $$$, that often covered the deductible.