OP: For those in their mid 20s, do these bring back fond memories?
Nope, because my life does not revolve entirely around the TV as its mental slave. And most modern kids cartoons just rot the brain, or what passes for one in some people. And fond memories? You have to be kidding. They aren't even funny when they try to be, and they are just plain stupid the rest of the time.
Also, most modern cartoons mirror the fall of intellectualism and the serious decline of modern education almost completely. As a kid, I preferred to watch adult type TV, not regurgitated animated trash made for semi-retarded minds. But I did like the Star Trek and Planet of the Apes cartoons or some of the older ones made in the 50s and 60s that weren't entirely devoid of any moral values like Ren and Stimpy are. But that's what makes it so funny you say? What does that say about you? Humm?
Wow you sound like loads of fun.