2024-09-25
The main reason is it saves lots of queueing.
Otherwise they will be tired and impatient long before the end of the day.
There is no point arriving earlier because the queues will be minimal before that time. Ignore this if you are staying at a Disney Hotel. In that case, you get to enter the park an hour before those who are staying elsewhere.
The inner gates span a much wider distance than the outer ones. Most people will only notice the parts of the inner gates directly in front of them and will join the queues there. By running off to the sides, you can get further to the front than you would otherwise.