peer pressure. "What, you're not on Facebook? Lol, looser."Weird worldviews will result in you be treated weirdly. Deal.
And people ARE being forced to use proprietary software. At home,
Change. If it's that important to you, you will.
at work,
Quit. If it's that important to you, you will.
if it's only because they don't know any better
Then they don't care, and it's unimportant.
You don't always have a choice.
Yup. Life kinda sucks, huh? Wear a helmet.
Furthermore, it's not just about having a choice. It's about breaking the dominance, and eventually getting rid of proprietary software altogether. The only rational choice for any human being who's interested in progress and long-term sustainability is Free Software. Proprietary software is opposed to both of these concepts.
This does not follow from...er...reality. Terribly sorry.
I write proprietary software (TEH HORRARS!). I am also interested in technological progress. The two are in no way opposed, unless as your postulate you take the really cretinous stance they they are--and once you do, well, sure, it's obvious. But that postulate is wrong and cretinous, so...