When we were crawling around on all fours, at some point one of them creatures stood up and attempted to walk around. Now you know all of his buddies were calling him a fool as he kept falling over, and over and over, but sooner or later he got it mastered. So the next time a predator was sneaking through the grass looking for a lunch snack, the one standing saw him coming first and started running for the trees, he was also able to dodge just a bit better because his head position was an advantage, so he made it to the trees and his buddies who were laughing earlier got eaten.
Well all the fools on all fours got eaten, where the one standing got laid, passed on them genes and and watched his kids grow up with a better chance of survival.
These days, we understand that to survive you must progress or you either get eaten or just left behind at best. Either this game progresses or becomes the "remember when we used to play..."
If you or your friends quit now you are going to miss out on the improvements the rest of us are patient enough to enjoy.