Yeah there's no reason that in 2019 we should even have to file. Everything should be automated for 85% of the population and they just receive the bill. Only a small percent would actually need to file due to certain circumstances mostly by people that are using special business structures to minimize taxes.

Assuming you're a traditional W2 worker, yes. But many people have other income sources such that the IRS doesn't know how much you owe until you report it.