That’s how you break in raw denim jeans. But I’ve never done it, too much of a commitment.

https://www.gq.com/story/raw-denim-guide-experts

A whole new fascinating world to me

Then, I’ll wear them for a few days before climbing into a warm bath in them and soak for 20 minutes. Once soaking is over, I slip out of the jeans and let them dry in the sun.

Most jeans are sewn from Sanforized (pre-shrunk) fabric. Wearing them damp won’t do much.

Raw, non-Sanfordized “shrink-to-fit” denim is a whole different story. For example: https://thighsbiggerthanyourhead.blogspot.com/2010/12/how-to-shrink-to-fit-stf-your-levis.html

If you go for the look like the’re painted on I say please yes…wear them wet ;)