There are very influential anti-tax and small government think tanks that vehemently argue against it, from the perspective that it reduces oversight.
Their position is that people just won't pay much attention to how much taxes they're paying if they don't have to fill in tax paperwork themselves each year. Their position is that if you make it invisible to end users, governments will just keep creeping up that tax percentage on end users and people will just accept it.
They're not wrong as regards to visibility, in the UK where tax is PAYE (Pay As You Earn), I don't think I ever paid more than a moments glance at the P60 (but I'd often check month to month that things were in the ballpark I'd expect. I'm a little more unusual in that regard probably). In the US I've had to pay close attention.