Beginning March 23rd, 2013, any guest under the age of 14 must be accompanied by a guest that is 14 or older in order to gain entry into Disneyland Resort. This new rule will be adopted for the other US Disney parks as well. Before this, Disneyland Resort never had a specific age limit for park entry, and the other US parks had their own varied rules.
In order to enforce this new rule, cast members (Disneyland employees) will have to go with their gut. If a young guest appears to be too young and is entering the park alone, the cast member will engage in a conversation with that guest. As kids generally do not carry a form of I.D. with them, the cast member will have to determine through conversation with the young guest whether they are of appropriate entry age or not. If the cast member decides that the guest is underage, the child's parent or guardian will be contacted, and that adult would need to physically accompany their child into the park.
Disney did not randomly come up with the age of 14 on their own. They contacted child welfare organizations and surveyed their guests, and both agreed on the new age limit. Disney chose to update their policy as it is a question they admit to getting from parents time to time.
While Disney says there was no specific incident that sparked the necessity for this change, regular Disneyland visitors are expressing great relief in this new policy, as some have remarked that the parks have become a child daycare service without any real adult supervision. This made Disney liable for these children, so the new rule protects everyone.
The new policy will keep Disneyland Resort safer, more comfortable and more secure for guests.