President Roosevelt’s face is on the dime because of The March of Dimes.
Roosevelt had Polio, and The March of Dimes raised money for research to cure Polio.
George Washington owned quarter horses, so his head went on the quarter.
Abraham Lincoln said “A penny for your thoughts” to his wife before he was shot and killed, so his head is on the penny.
Thomas Jefferson’s life wasn’t worth a plugged nickel, said his angry neighbor who argued over a border fence between their farms, so his head is on the nickel.
Nobody uses all those other big, fancy coins.