Most government jobs require you to be registered.
Indeed, as well as the free money for university, which still exists although they're tighter now. My brother, who died at the relatively young age of 52 about 11 months ago, was an absolute objector and he never registered for selective service either. He was the only person I knew well who bragged about not being registered, although I suspect such attitudes are more common nowadays. He and I discussed that many times when we were younger. "I don't give a flying fu
ck whether I can get free government money. It's not their money anyway--it's ours--and I don't see why I should have to promise to kill people or defend bad policy just to get a bit of it back." He was the prototypical libertarian. Owned many guns, liked to hunt and camp, stayed high, used whatever drugs were available to him, and showed great hostility toward US government policy generally, both domestic and foreign. He also never voted, which I assume is a very libertarian tendency and probably explains why they can't break double digits, even when the main choices are Hillary Clinton and Donald Trump.