They may not become interested in retaining their privacy, but they may do it, unconsciously. Your analogies with Facebook, Windows and Chrome aren't the same when it comes to a currency and here's why.

Yeah, if you want to have Facebook since your relatives/coworkers do, you're most likely to lose a good proportion of it. You can't really convince me to switch to Linux as the entire world works on Windows, even if it's a spyware. Same goes for Chrome, although chromium is open-source. (AFAIK)

But, when privacy is retained on a protocol level, then the project protects the users' privacy without needing them do it for their good. For instance, with the LN, you can't trace what I do, especially if I run my own node. I haven't read much about Taproot and Schnorr signatures, but I know it's going to help for large transactions.

I'm just saying that Bitcoin doesn't have that many privacy issues as a currency where each citizen's transaction is known. And by all these features, I can't comprehend why a government would accept its usage, officially.

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I have a feeling that a privacy crisis will outburst in the late 20's and people will trade their digital currencies for Monero (& Bitcoin).