Why do you browse without it?
Discussion
I don’t like executing untrusted code. by default your browser will run however many megabytes of arbitrary code the website gives you. often times this is fingerprinting, tracking, popups, and other garbage that is unrelated to the basic functionality required for a given page.
if I know and frequent the website, I typically allow javascript to run. but by default it is blocked.
I prefer this model for browsing.