DL in 1971- I was 5 and remember IASW, Pirates, and the donkeys that you rode through what looked like the Grand Canyon. My cousin was 4, and we both screamed and cried the whole way through Pirates- I was a wimpy little kid!
The next year, went to MK (back then it was just WDW) and loved everything. Still wimpy, though. My rotten older brother told me HM wasn't scary, so I went on it and was totally traumatized by the "hitchhiking ghosts". Mom and Dad had to nurse me through a few nightmares over that one. Looking back, I can't believe I was such a scaredy-cat... my DD went on HM at age 3 and loved it!