Some, but not necessarily all of the following apply:
1) Younger people
2) Educated (can be self taught)
3) College grads or dropped out of college to do a startup
4) Have more to gain than to lose by participating in a startup. (Little assets, [1] not leaving a traditional job but perhaps going from another "startup")
5) Working primarily with other people's money
6) Has the interest and/or money of "angels" "Vc's" or "incubators".
7) Doing something that could get big and stands a high chance of failure. (In other words, not starting an Italian restaurant that's going to be a single location sauce and cheese place)
8) Located or able to travel and possibly relocate to a place that startups are typically. (Silicon Valley, NYC or the other hubs..)
What am I missing? (Please fill in the other things I am almost certainly forgetting).
[1] Unless they have family money or have done a previous startup where they hit the pay window.