Tire pressure management was one of the striking differences between my experiences in France and in the US.
In France, we'd check tire pressure at gas stations on nice machines that had built in dial gauges and were free.
In the US, I had to use one of those hand gauges and the air pumps needed quarters (in most cases, especially if you weren't also buying gas).
In Portugal now, the gas stations also have free air and pretty good pumps.
Many new cars have a tire repair kit instead of spare tire nowadays. At least there is a compressor in the kit which you can use to inflate the tire.
> the air pumps needed quarters
I landed at JFK and was looking for a stroller to stack my suitcases on. The kind of stroller that is free in every single airport I've been to.
I was shocked to see it costs $7. The guy who (I presume) worked there sardonically exclaimed "Welcome to America."