Nor can regulation. But the idea is that, in seeking to avoid liability, people will avoid doing things that would foreseeably lead to such liability.
Likewise regulation is limited to preventing foreseeable issues, and is often only implemented after somebody suffers damages.
The difference is that regulations are imposed by a third party whose interests may not be aligned with those who are actually involved in the matter. This is good in circumstances where there are externalities, for example just because I'm okay with entering an agreement with a company to use my backyard to store toxic waste doesn't mean my neighbors would be very happy. But when people are making decisions that will only affect themselves, such as what wheelchair to purchase, liability really is the more sensible consumer protection.
Likewise regulation is limited to preventing foreseeable issues, and is often only implemented after somebody suffers damages.
The difference is that regulations are imposed by a third party whose interests may not be aligned with those who are actually involved in the matter. This is good in circumstances where there are externalities, for example just because I'm okay with entering an agreement with a company to use my backyard to store toxic waste doesn't mean my neighbors would be very happy. But when people are making decisions that will only affect themselves, such as what wheelchair to purchase, liability really is the more sensible consumer protection.