I am a bit late to the party... but although I missed being senior to Disneyland by a few years my husband was born in 1955 and LOVED riding the mules. My first visit was in 1963/64 and I stayed plenty far away from any horse/mule/donkey! He married me anyway!
When we talk to people who cannot understand why we go to Disneyland so often it is hard to explain that it is less about the way it is now (crowds,etc.) and so much more about the memories it invokes. We still like to just stroll around and laugh about the good old days--when blue jeans were forbidden, and it was closed on Mondays and Tuesdays! and all our other great memories.