My sense is the opposite. Billions of people use Facebook & X because hosting their own website is too hard. It’s very likely millions of people would love a simple way to host a website from their phone.
But most family and friends forget to visit it, because Facebook is not promoting my website.
The internet activity of younger generations today is increasingly centered around use of only a handful of websites, mostly provided through dedicated phone apps. Unless a person’s own website gets promoted by a social-media site’s algorithm, or comes up at the top of a Google search, no one is going to visit that URL.