A VC or Angel knows they're taking a risk that you won't be able to handle the job, so they spread their investments over a lot of companies hoping to find that diamond in the rough. Even so they're not going to hand over money to everyone who asks for it, you need to prove yourself to them through some means other than experience. Look at how tough it is to get into YC for example.

VCs give money to people in a different position. I can't think of a single start up that went in to an angel round with 20,000 employees.