It is much deeper than that.

Do you want your other employees to know how much you pay everyone else?

Do you want your competition to know who your suppliers are and how much of a good deal they are offering you?

Do you want your baker to know how many more thousands in bitcoin are in your wallet by virtue of change addresses?

Do you want your whole transaction history exposed to anyone you ever transact with?

Do you want your BTC to be rendered worthless by virtue of being tainted from previous use, possibly implicating you in a criminal case in the process?

That is not the way forward, that is the way to madness.