I think the default should be: Don't use any JavaScript if you don't have to. And if you have to, use it responsibly.

Recommended reading:

- "Responsible JavaScript: Part I" by Jeremy Wagner (https://alistapart.com/article/responsible-javascript-part-1...)

- "A JavaScript-Free Frontend" by Matt Reyer (https://dev.to/winduptoy/a-javascript-free-frontend-2d3e)

Disclaimer: I'm from Germany, but have a 6-y/o Android phone and live in a rural area with poor EDGE connectivity (~50kb/s). Most "modern" websites don't load/work for me.