Solutions exist to this that can respect the distributed nature and not rely upon a single authority. Multisig wallets that require N of M where the participants are chosen from a broad swath of the relevant community is popular. That way you can go in and change transactions after the fact, all without requiring the blockchain to (a) know about it and (b) everyone gets to choose their own relevant security model.

It even exists now, if you mis-send USDC/USDT you can petition Circle or Tether to reverse or change a balance. Commonly required when sending USD* to an address that can't move it out or handle it.

But ALSO a lot of payment systems that people like are in fact not reversible, even by courts. And people like them that way - it prevents fraud. Fedwires, Swift wires. Consider selling a high value item: there are few ways of electronically transferring amounts that can't be frauded out later. This is why many used car sales are done via cash - can't undo cash!