I have to say, I don't really remember any specific pre-collecting recollections of coins, just some vague remembrance.
Growing up in the 1970s in Australia, my childhood coins were Australian decimal coins. I do remember being somewhat confused by exactly what was supposed to be depicted on most of them. The one cent had some kind of possum, the 2 cent a frilly lizard (that one was obvious), the 5 cent a porcupine or hedgehog ("echindnas" weren't really a household-familiar animal for suburban Australia back then), the 10 cent and 20 cent were just a mess of squiggles with no discernible animal featured, and the 50 cent had the coat of arms.
My earliest coin-specific memories were from actually starting collecting coins, some time around 1980: going to a coin and stamp show, and seeing the foreign coin scratchdrays some of the dealers had on their tables. Weird languages, old coins from way before I was born (no Australian coin at the time would have been older than 1966), and most intriguingly of all to my little eight-year-old self, gold coins. Well, they were actually brass coins, as I was to be told later, but they looked like gold. I remember buying all the different "gold coins" they had. Needless to say, "my earliest coin collection" - the first couple of hundred entries in the database - has an over-representation of brass.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis