In how could something be better then cash?
1. Cash has good acceptance.
2. Cash is easy to use.
3. Cash is really under your control and eay to store up to some amounts.
Which are the points Monero is better?
Discussion
Well there a lot of things Monero does better or that cash can't do at all.
-Can't use it to transact instantly with anyone on the planet.
-Can't carry arbitrarily large amounts.
-More vulnerable to confiscation and theft.
-More difficult to verify authenticity on-the-fly.
-Issuance is centralized, unpredictable, and doesn't require PoW.
-Not as easily divisible (Need to carry specific denominations and change)
-Can't trustlessly exchange for crypto (no atomic swaps)
-Can't have multiple people with simultaneous ownership and control over the same cash (multisig)