I find the complexity particularly annoying. When I was single and only had income, cap gains and dividends I could do it myself. Now I need to buy a piece of crappy software so it doesn’t suck up a whole week worth of time. I still to my own S corp taxes though as the business model is simple.
Unlike rocket science or nuclear physics, taxes are hard because a group of aholes made them hard.
They do this to reward their friends, punish their foes, and keep the rest of us beholden to the IRS.