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.