Watch..The dry cleaning lobby will find some way to get it banned...
In my area, there are very few dry cleaners left.
I have always had a few pairs of white denim jeans. You just either use a stain remover or a little bleach.
And 20 washings before the coating stops working isn’t enough, IMO. I have clothing that is 25 years old or more. There are reasons to wash clothing not related to stains.