> In this case a real business in the sense that you're legally able to actually hire someone else out and have the margins to do so.

I think you mean a 'profitable' business then, because several large tech companies have no margins and rely on continued investment. An uber driver is certainly free to seek investment externally to continue to fund themselves presumably.

> You know plus or minus everything you can't do or a company can't pay you to do because it's illegal.

That's assumed, obviously. Just like freedom of religion does not mean you can kill people because your religion says so.