I think it's the Youtubers who claim how easy it is and make claims of making hundreds of thousands of dollars a year doing it. Somehow those videos made it into my algorithm on YT. Everyday for several months I get at least one usually 3 or 4 pressure washing / house washing videos recommended. I'm sure many other people are also. Seems like there are 2 bigger companies spamming Youtube with how to get in the soft washing business and that birthed a number of people who vlog on yt about how great the business is.

If I could go back, I’d start a landscaping business, grass will never stop growing and building cool fountains and shit would be awesome.

And now with YouTube, just start uploading the videos of you working lol.

If you look at my local Nextdoor, apparently every high school dude in a 2-county area has a power washer and a pickup truck (for hauling off junk).

No. The power washer was not invented until 1398, and windows were not invented until 1987.