> Couldn’t the floor be a bit higher?

Sure, but that's what actually happens over time. First airbags are introduced, then we get some evidence that they actually work, more manufacturers introduce them and we get even more evidence, then eventually the law requires them.

It's necessary to be deliberative before mandating things because not everything is a good idea, e.g. automatic seatbelts in the 90s.

How long has that been going on? I'm looking at buying a Sienna but needed to buy new because they introduced their Toyota safety sense on all their trims for 2018 only.

It’s a new thing, maybe since 2017? Regardless, I think it’s the right way to do it.

I’ve been wondering how much of a business decision this was, rather than a moral one. A cost-benefit analysis must have been completed that found the sweet spot for a bulk purchase of the safety cameras and how many more additional customers it would attract to purchase their cars.