Only older people get diabetes.
The accuracy of this statement is based both on the definition of “older” as well as the definition of “diabetes".
What could have been said to make a true statement:
Children and teenagers may develop either type 1 or type 2 diabetes. Adults may develop type 1, or LADA, or type 2 diabetes; older adults are more likely to develop type 2 rather than type 1 or LADA.

