Coins Are Heavy
Everyone is looking for ways and means to get rid of their coins. Because coins are heavy. It is a common sight to see people digging for coins to give to the cashier when making payment for their purchases.
Some hawkers even refuse to take coins from customers.
In the 1980s, coins are essential for taking buses. Everyone was looking for ways and means to get more coins.
With the advent of cashcards, stored-value ticket cards, etc. coins have become somwhat obsolete as they are bulky and heavy and nothing short of a nuisance at times. We need more coin deposit machines.
If dollar notes are also known as legal tender, then coins should likewise also be known as legal tough. As it's tough to carry tons of coins around wherever you go. Carrying around a thick wad of dollar notes in your wallet is hassle enough, let alone coins.