Wet wipes are very very useful, that is a fact.
But they cause huge problems when flushed and don't biodegrade when they go to landfill.
Before wet wipes we used washable cloths. I had twins, and would take a number of damp cloths with me, with a separate bag for used ones. They got washed on a good hot wash before reuse.
Not as convenient, but perfectly possible.
Also had terry nappies, and I must admit I don't miss them. The bucket of napisan, standing over the twin tub washer set to "boil", using the washing tongs to lift them into the spinner, took hours. But the line full of Snow White nappies flapping in the breeze was very satisfying!