Silver was removed from Canadian coinage in 1968.
It disappeared fast.
That’s 56 yrs ago.
A child under 5 likely never handled money.
Thus anyone under 61 yrs old has no memory of silver coins in circulation unless it was in a collection.

Over the years I asked people born from the 70’s on if they knew anything about Canadian silver coins. Firstly, most had no idea what the coins were made of and secondly, most had no idea that we had silver in our currency at one time.

Almost everyone knows that Gold is precious but Silver not so much.