Maybe we're not going to the same places but "just having a website for rates and hours" is a SAT problem for salons/tattoo parlors. They need to know what you want and also show flattering photos of what they can do (and also comply with the growing mountain of privacy regulations), determine if you have any staff preferences and when staff is available for whatever you're requesting, and compute the available times grid. If you just want a speedcut, that's not necessarily what those shops are optimizing for.
Even if they have the tech from an existing SaaS solution or from vibe coding, they still gotta diligently update the source data from staff. You can't blame anyone for giving up, posting their phone number and a few pictures on social media, and just writing reservations down on paper.
I really thought the article was about personal websites like in the 90s, not bringing up hair salons as an example.
A hair salon needs a presence on Google maps with a bunch of reviews and their rates and that's it. Sure they don't own it but until that works it works.
Locally I have an issue finding builders and electricians, because they don't have websites. They may have a listing in the phone book, but that's just "Bob's bricklaying", doesn't tell me a lot about whether or not Bob is actually a company, but I can call and ask. Sometimes they haven't had a company for years.
The preferred methods today seems to be Facebook for your average builder, Instagram if they feel like they do more upscale work. I'm on neither platform, so I have to resort to taking pictures of vans when I'm out and about.
I think the problem is that having a website is a bit complicated for a carpenter, but not enough business for a webdesign company to deal with.