I've not as yet found one hobby that would absorb me completely when I'm not working, but I have just bought a new apartment and didn't quite bargain for the amount of effort and time and money that that absorbs.
Candidates don't have to deal with reality. They talk about the wonderful things they can accomplish as if advocating them is the same as achieving them. They live in a world of political make-believe in which everything from reconciling conflicting interests to paying for costly programs is easy.