Not cool like being an actor. Perhaps the reason startups seem cool to you is that you're thinking of famous consumer startups like Google or Facebook or Twitter. But the median startup does some boring infrastructure thing, like software for making online stores. You've never heard of the founders of these companies.

Even founders of consumer startups are way less cool per dollar than actors. I'd guess Larry & Sergey are about as famous to the general public as actors whose net worth is 1000x smaller.