This is solely my opinion, but whenever I hear people call themselves "entrepreneur" I immediately think "C student in high school with few tangible skills but is sick of working as a cook at Denny's and thinks calling themselves an entrepreneur will lend them some weird street cred because they heard Dre call himself an entrepreneur".

At least being simply self-employed is easily explained away by just wanting to do some freelance work or consulting for a few months or whatever.