How do you convince my parents to let me buy the sims 4?

Answer 1

It's very very very unlikely, especially if you already have more than one computer, that this is possible. But, I do have a solution. The Sims 3 is currently available for almost every major gaming system on the market- Wii, Ps3, Xbox360, and you might have better luck convincing your parents to buy one of those systems, if you don't already have one. Then purchase the game for that. Alternatively, you could easily convince them to buy a new computer graphics card, or to upgrade your current one. That may help.

Answer 2

Buy the sims 3 at a bargain and play it with your parents. They will love it so much that you will all want to play the new one. If they are not wanting to buy it say that you will pay half. when you get to the counter they might just pay the entire thing.