Cash is weird because in theory it's a simple way to conduct a purchase but increasingly the coins become lost in the mix. I'm in the U.S., if someone hands me a few pennies/dimes as change they have effectively given me metallic trash for me to hold. I have a digital bank, so no way to deposit coins. I'm not going to carry coins around with me like I do whole bills. I'm essentially left with the option of taking them to a "coinstar" machine which will give me just a portion of what they are worth and to make that worth it I have to save up all my coins for multiple years since I get so few of them.
I haven't been to a Coinstar in ages even though I have a big bucket to cash in. (Basically on rare times I get coins I just toss them in when I get home.) As I recall, you can often get gift cards (e.g. Amazon) for the full value. I should look next time I'm in the grocery store.