I think this is a lie we are told by society. It only serves capitalism. It's a lie that takes away from you as a human being.

I think we all have within us the ability to do the things needed to go about out lives (physical disabilities notwithstanding).

Anyone can (and should) learn to paint a wall, put up shelves. change the oil on their car, fix a leaky gutter, unblock a drain.

Specialisation is great for more complex skills, and especially for skills that take years to master. I don't think anyone should do their own surgery. But I do think everyone should be able to put up a medicine cabinet.