At Walt Disney World, the primary age "cut-off" for ticket pricing and logistics is 10 years old. Children are categorized into three groups: Under 3, Ages 3–9, and Ages 10+. Children under the age of 3 do not require a park ticket and are admitted free of charge. Children between the ages of 3 and 9 are eligible for "Child" pricing, which is slightly discounted from the standard rate. Once a guest turns 10, they are considered an "Adult" for ticketing purposes and must pay the full adult fare. This age cut-off also applies to the Disney Dining Plan, where children 10 and older are required to purchase the adult version of the plan. For hotel reservations, "Adult" status generally begins at 18, meaning that guests 18 and older may be subject to "additional adult" fees if there are more than two adults in a standard room. For certain "unaccompanied" activities, like entering the parks alone, a guest must be at least 14 years old, while the minimum age to check into a Disney resort hotel is 18.