It's actually super possible. Today's web is still 100% compatible with forms and cgi. I just signed into amazon with 2FA and checked out with javascript disabled. Healthcare.gov OTOH won't let me past the 'choose your state' drop down.
Like what? I run with JavaScript off whenever I can. Most of the time when I enable it to access a site, it's obvious the site could be made to work (for the visitor) without JavaScript.