The evidence that car seats save lives is
significantly weaker that you probably believe, as I detailed in another comment in this thread. But look: even if car seats make sense for a typical 5 year old on a typical drive in their typical car (which is a higher evidentiary burden than you might think), a mandate imposes a huge logistical tax that makes many normal things completely infeasible or impractical:
- travel with many kids (nope, physically can't carry 4 car seats plus luggage)
- using a taxi, e.g. to go see a movie (nope, can't carry a car seat into the theater)
- carpooling with other families (I'll drive them, you pick up? Nope, we'd have to shuffle car seats around.)
- rides with grandparents or other family members (sorry, we'd have to deliver the car seat to them first)
- splitting kids between two vehicles for errands (let's spend 10m wrestling car seats from one car to the other first)
The whole texture of independent childhood is altered by car seat mandates! Everything gets filtered through "is there a car seat available?". If you haven't experienced this, it's hard to describe - and I think it's absolutely a case where tradeoffs like "how will this affect quality of life?" are completely overridden because "well, if it just saves one life..."
- travel with many kids (nope, physically can't carry 4 car seats plus luggage)
- using a taxi, e.g. to go see a movie (nope, can't carry a car seat into the theater)
- carpooling with other families (I'll drive them, you pick up? Nope, we'd have to shuffle car seats around.)
- rides with grandparents or other family members (sorry, we'd have to deliver the car seat to them first)
- splitting kids between two vehicles for errands (let's spend 10m wrestling car seats from one car to the other first)
The whole texture of independent childhood is altered by car seat mandates! Everything gets filtered through "is there a car seat available?". If you haven't experienced this, it's hard to describe - and I think it's absolutely a case where tradeoffs like "how will this affect quality of life?" are completely overridden because "well, if it just saves one life..."