Except nursing is experiencing a major shortage too - https://www.theatlantic.com/health/archive/2016/02/nursing-s... So if anything, the low wages for nurses just just further supports the parent comment -- wages are too low.

If you want to fill a shortage, you need to start by raising wages substantially. If for no other reason than to at least allow new students some hope of ever repaying the always-increasing college costs required to enter these fields.