Even at early stages you'll spend tons of time doing the same thing over and over again, leaving you susceptible to the mental equivalent of repetitive stress disorder. Medics and entertainers are particularly subject to this problem. I'm not convinced that those careers are particularly entertaining and it's not yet clear how the elite professions you can reach by following those paths have much more to offer. Anything that gets you out of the cantinas and hospitals has to be an improvement. Thankfully, you can take on multiple professions at once and balance your time in the hospitals with some time in the field.