There's a small number of games that are exclusive but you'd have to buy 2-3 different consoles just to get access to them all anyways, which is not a realistic choice.
And yeah, some online multi-player games are console-only but as a parent I wouldn't want to be "forced" to buy a certain console make just because other kids might or might not have it. My friends had Xbox 360, I had PS3 and we're still buddies and we mostly played together on PCs anyways.
How many Xbox One / PS4 / Switch games can you get for free? A small handful if any. On PC, thousands literally. If you're not too picky, one could just play free games and never have to even pay for them.
I agree. But this was for his kids when they were kids living at his house. If he want's to maintain the no consoles rule at his house later on, meh whatever. That's his business.
Edit: Also, what makes it reasonable to enforce this while his kids were young was that he actively encouraged learning about PC's, not just consumption through a different "Magic Box".
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Who decided typing that on loop is how you learn to touch type?That being said, my keyboarding class included copying out bodies of text as well, not just patterns on loop (There certainly was that though).