Tyre construction has changed dramatically over the last few years and now people do take a bit of notice about running correct pressures.
Tyres run cooler, they are constructed with more durable materials. Just look in a scrapyard and see if you can find a D20 and look at the difference.
It doesnt stop the trail of rubber and bent mudwings if you run down to somewhere hot with 16’’ low profiles and have a habit of clipping kerbs