it's because solving the challenge of how to do it is fun and interesting whereas actually putting forth the effort in doing it sounds like work and is not fun.
For me, this might mean studying with the knowledge that when I get antsy and need to task switch, I can do the dishes instead. It feels like a weird form of circuit training
Or you start out with folding clothes, then start putting them away, get distracted by the dishes or cleaning up the bathroom, and start on that other chore. The key is to eventually get back to the original (easier said than done), but even if you didn't really get it done quickly, you often put yourself in the mindset of cleaning, which helps on its own.
Nah, try forcing yourself to start one, and decide you're going to take a break from it for "*just a minute" *™ by doing another chore, and be amazed by how many chores you get done avoiding the first one. Bonus points if the first chore isn't even that bad.