[matteotom]

"negligible" safety increase seems to be about 19% reduction in injury vs not using a booster seat: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5522634/

I would love any citation for "This shit has a direct and measurable impact on birth rates", since there's good reason to believe it has a greater than negligible increase in safety

[parpfish]

I think the both rate thing is in reference to studies like those discussed here: https://www.lesswrong.com/posts/c4daDbQD398BmW5k5/on-car-sea...

The idea is that you can only fit two car seats in the backseat and upgrading to a larger car that could fit three is enough of an expense/hassle that it discourages having a third child

[normie3000]

From the link does this bit mean?

> The risk of experiencing an incapacitating/fatal injury was not associated with booster use.

It seems to imply that booster seats do not reduce the risk of serious injury or death, but I'm not sure I am reading correctly.

[matteotom]

I’d read that as saying the data are insufficient to prove either way. Likely because there are so many fewer deaths and only 10% of the children used booster seats, so the error bars are too big.

[elzbardico]

19% seems to be a big number, until you figure out that the absolute number is not that big. Individually, it may make sense to mandate it, societally, probably no.