Earlier quoted context omitted.
In the UK if you are an employee of one company you get PAYE (Pay as You Earn) which is dealt with by your employer. I'm 40 and have never had to do a tax return, I get a summary at the end of the year and a breakdown on each pay slip and that's pretty much it. It's one of those silent services that government does so well it pretty much disappears into the background.
Maybe this is already clear, but in the US "tax witholding" done by your employer is mandatory for most people. So all the paperwork we do at filing time is just to compute the difference between what was withheld and what you owe.
Only in exceptional circumstances does a normal waged employee have to have anything to do with taxes.
Until I was self-employed in my 30s I never filled out a tax form. Some people never do.
You're being swindled in the US.