system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are coins in the U.S. not sized according to their values?

Would it not have made sense for the coins to have been sized from 1-5-10-25 instead of 10-1-5-25? Do other countries also do this?
gpt
Because their values used to be based on their metal content. Quarters and dimes were silver, nickels were nickel, and pennies were copper.

That became too expensive, so all the silver-colored coins were switched to copper-nickel and the penny was changed to zinc, but they kept the old sizes so the new coins would look the same.