@beachbum you mean PPI when you write DPI. A pixel is a square, you cannot print a square square using one dot, so DPI is generally much higher than the PPI, in the ballpark of 10-30 ink dots per pixel. It would be difficult to find a home inkjet printer in 2018 which prints at a resolution of not more than 300DPI. Most home inkjet printers (I just checked in MediaMarkt) have a dot pitch of 10µm or less ( = 2540DPI or more).
That’s of course not in disagreement with the argument that ~160PPI could be enough when taking into account the typical viewing distance.