What's he going to do in the winter? A year around, affordable semi-private might make more sense.
1. take time away from golf
2. play less since there is less daylight making weekday evening golf impossible
3. drive a tad N to play the municipal in Fort Pierce (or similar less-expensive options)
4. just pony up the going rate for the courses he does play since it is still cheaper in the end
Realistically how much will a recent college-grad beginning a career get to play in the winter, assuming he's interested in normal things like chasing girls, swilling beer, and whatever people half my age are into.
Even if he plays the same course once a week for a year the per round cost of Quass's option is still $70, and the $3,600 all-in is a great value for the area.
If he's a strong player he can play FSGA events and Palm Beach County amateur events, although you may have to live there for the latter. Tons of avid golfers remain unattached in Florida. It may not be ideal for him, but it isn't like that's not a viable option.
Would I join a club if I moved to Stuart? Not sure.