In 24th century Starfleet, calculus was taught to children around age ten or older. On the USS Enterprise-D, Harry Bernard hated calculus, despite the fact that his father told him everyone needed a basic understanding of it. (TNG: “When The Bough Breaks”)
Five-year-olds must be pretty advanced in the 24th century.
Three hundred years later and some things never change.
Gottem, ha