Although you make some good points about the acting profession, gotta respectfully disagree on the basketball thing. Men and women of average height make great point guards. With lots of hard work and tenacity, my 5'6" daughter was one of them:
I'm sure your daughter is a very talented player, but how realistic would it be for her to think of a career in the WNBA or foreign pro basketball?
Anyway, I've much more experience in covering men's basketball, so that's my reference point.
Just as there are plenty of people who are highly skilled actors, but don't have the right looks for a career in acting, there are tons of talented basketball players who don't have the height to play in the pros.
One of the best college point guards I've seen (NCAA Division II) was too short to get into the pros -- not even the CBA nor the Euro teams were interested in him. I even tried to get an NBA GM whom I sort of knew to take a look at him, but once the GM found out that this guy is 5-foot-11, he had zero interest. Despite the fact that this guy is smart, fast, accurate shooter and passer, good at setting up his teammates and running plays, etc., there was just no interest from the pros, at any level.