What did we do BEFORE TPIS/TPMS?
I got out and actually checked tires and hubs. I don't drive a Honda with the hood welded shut.
"What did we do before"
Left LAS Vegas this past winter from an RV park . All four tires were okay on the fifth wheel 95 psi. 20 miles outside Kingman, when I looked in my mirror it looked like my fifth wheel was on fire, and small pieces of rubber were starting to come off the tire. It was not a blow out, it was a road hazard of some sort ,nail or a pothole cut it, the road was terrible, and the potholes were deep , and hard to miss.
Here's just a guess either a sudden loss of air from a cut tire ,, or a slow leak from a nail or whatever. The sudden loss , a TPMS would of not done me much good. Slow leak ,yes. I could of got pulled over , and hopefully saved a tire . I was lucky no damage to the wheel or the fifth wheel, could of been worse.
To answer your question"What did we do before TPMS" , we suffered the consequences . Sure I will continue to check tires ,and hubs before hitting the road, but there is a good chance I would not have lost a tire if I would have been running a TPMS on my fifth wheel. No amount of checking tires is going to save your tire unless you have a TPMS, if it picks up a nail or whatever ,and gets a slow leak . Yes I have one on now , one tire is enough .