Most good tradesfolk are, basically - they're just also a journey/master at their chosen trade. Plumbers, carpenters, HVAC, electricians, masons, everyone has to work together so you pick up some of what they do just by osmosis. Later on you'll be doing something totally different and go "oh wait I saw those guys do that this way, that makes sense now".

The number of problems you can solve scales logarithmically with the amount of skills you learn.