system
Given the following post, respond as if you're commenting on Reddit:
human
[Ed, Edd, N Eddy] Why does Double D put up with the other Eds' trouble?

They use him because of his intelligence and he has no problem at all being nice to the other kids. Sure he gets wrangled into Eddy's scams and complies, but they almost always result in the Eds getting pounded or punished in some way by the victims. Without the other two Eds or really just Eddy, his need for an orderly life can be fulfilled.
gpt
They're still friends at the end of the day. Edd isn't exactly the most popular (none of the Eds are, actually) but they have each other.

And Edd, while being the most forward thinking and morally driven of the 3, still seems to enjoy the Eds' schemes as an outlet for his creativity. He gets to design and craft things, many of which are ridiculously ingenious. There's probably not a lot of things that keep Edd's mind occupied especially during those seemingly everlasting summer breaks.