You shouldn't lie about your age for freebies.
Ethel and Betty are having dinner at a restaurant that offers free desserts for customers over 65.
Ethel wants to have dessert.
Ethel orders dessert but pays for it, since she's not 65 and not eligible to get it for free.
Ethel tells the waitress that she that she's over 65, when she's not, and she gets a free dessert.
Betty tells Ethel that one day they'll both be over 65, and they'll come to the restaurant to get a free dessert.
Betty tells Ethel that it's wrong to take advantage of the restaurant like that.