I’ll also mention that I’m a thrill junky but now having a just turned two year old and a second on the way, I’ve really grown to appreciate the need for a lot of family-friendly attractions, particularly for younger kids.
The last time I took our son was a few months ago before he turned two and we only had two days for the parks without a park hopper. Day one was Magic Kingdom for obvious reasons and when I mentioned to my brother that we were doing Animal Kingdom for the second day, he was shocked (he doesn’t have kids). I had to point out that at Epcot and Hollywood Studios, there just aren’t many attractions fitting for a really young child and most of the stuff my wife and I would want to do we couldn’t bring him on.
My son turned 2 in November and we took him last month. We did all the parks, he enjoyed Hollywood studios. The Disney JR show was great. I was disappointed MMRR wasn’t opened yet but he definitely wasn’t bored. He took 3 naps at Epcot, lol.