Two years ago, we went with our then 6 year and 4 year old. My husband refused to rent a stroller, because he believed they were too big. Needless to say they really did great. Though, the last day, while waiting at the TTC my 6year old was not feeling well, so when we got into MK I rented a stroller. Best decision of my life! She was able to ride a bit and began to feel better then later the kids actually doubled up and it was great for them (this was our last day and I think all the walking and running finally was catching up with them. Also, they had a good seat for the Electric Parade down main street that night.
It just depends on your kids - see how they are feeling, go with it and you won't torment yourself.
It just depends on your kids - see how they are feeling, go with it and you won't torment yourself.