The fact that our government doesn't have the collective intelligence to just mail the tax bill using the information it already knows, with the option for the recipient to submit corrections/deductions, is a testament to the utter failure of governance in the US. Fortunately having an ineffective government can often be a feature instead of a bug.
The IRS wants to do it, they already have all the software internally to do it, they're legally barred from doing it. It's nuts. Intuit isn't worth that much.
The fact that our government has made such a process for fulfilling a legal obligation speaks volumes about the mafia-like nature of our federal government.
I pay lots of property tax where I live. But its just a bill. I can and sometimes do dispute the amount owed. But imagine if each year instead of that process I had to hire an independent team to determine what I owe, make a case for that, then submit that to my local tax authority. That's basically what the IRS does with individuals.