A bit late in the game here, but I tend to agree with you that Apple could have offered us the opportunity to change some of the user interface characteristics ... but, apparently, chose to limit what can be changed by the user. At the opposite extreme, a number of Linux variants do provide this. I happen to like "playing" with Debian/Plasma. With it, I have literally hundreds of interface options, including where those button will go (& even look like).
FWIW, my first Apple was a IIc. The next was a Mac mini in 2006, running OS X Tiger. I can concur with others here, that those buttons have been on the left side, at least, since then. Although I don't have the link handy, I know that there is a website where you can run rudimentary versions of Mac operating systems from well before OS X, and see for yourself if you are interested.