I held this opinion strongly, but this post from Terence Eden really explains it best: https://shkspr.mobi/blog/2021/01/the-unreasonable-effectiveness-of-simple-html/
The site is down right now, so here is an Archive link:
The post argues a pretty obvious point: Poor people with limited access to the internet on weak and slow devices should still be able to access important online resources!
I'm in a bit of a tight situation, personally. I've been looking at legal help in my area. I have my browser set to, by default, JavaScript off, and so many sites just don't work!
Sites for people seeking restraining disorder from abusive partners, for seeking low-income legal advice, etc. Like, it doesn't impact me, because I have a strong computer with a good internet connection and great English language skills and some serious technical chops.
The post also argues the following:
If your laptop and phone both got stolen – how easily could you conduct online life through the worst browser you have? If you have to file an insurance claim online – will you get sent a simple HTML form to fill in, or a DOCX which won’t render?
What vital information or services are forbidden to you due to being trapped in PDFs or horrendously complicated web sites?
and the post concludes with a lil fact ( https://twitter.com/TheRealNooshu/status/1356191997854412802 ) that a few thousand users are accessing the Gov.UK site from videogame consoles.
voxpoplar wrote
Also people who use screen readers and other accessibility tools that have trouble dealing with div soup.