EVERYTHING? I enjoy doing things that aren't eating and sex on a intrinsic level that I was never trained to enjoy.
No, not "intrinsically", you don't. Food, fuck, sleep, that's about it. You likely enjoy other things as well, but not intrinsically. I enjoy Sudoku, but that is something I learned. There is no "enjoy sudoko" element within me that I did not put there myself.
Why didn't people adopt personal computers en masse before Windows came to be then?
They did. Everyone I knew back in the Windows 3.1 days already had computers. Most of those people didn't have Windows, and used standalone applications. The increase in ownership came when hardware prices finally fell enough for them to be affordable. Windows development was a result of that uptick, not the cause.