The people who go to space early on will be the same assortment of opportunists that have chased every other frontier throughout history. All 'gold rush' scenarios in human history have attracted the same people: rich assholes with money, gold miners/diggers, hookers, and [of course], fucking lawyers. At a high level, these can be described (respectively) as investors, laborers, service industry workers, and fucking lawyers.
If you plan on moving to space, you better figure out which role you'll be in, long before packing up your space luggage and climbing aboard a spaceship. If you're unprepared, you'll find yourself in space, frantically scrambling like a stripper chasing a flurry of dollar bills in a hurricane; you'll never catch your lunch money unless you get on your knees, bend over, or start dancing for some shithead holding another roll of $1's. You might actually have to do all three!
I’ve put together a fantastic diagram to help you plan (Figure 1).
You're Welcome,
Leland McKnight
Figure 1.