"Everything what young people do, is sit in
front of a computer and be
lazy. Y'all would die if a world
war would happen."
"Grandpa, please stop being ageist and judging my whole existence and everything I do, only by my age."
or
"Oi, I'm not putting my life into this lil' brats hands!"
"Sir, please stop being ageist. This is your surgeon, trying to save your life..."