A lot of users do care about this when push comes to shove. An example is happening on Twitter: a lot of users want to escape Twitter onto another platform, but

A lot of users do care about this when push comes to shove. An example is happening on Twitter: a lot of users want to escape Twitter onto another platform, but they are 'locked' to the walled garden because they don't own their data in a way that allows for an exit. IPFS isn't perfect but does give you the ability to migrate to other (competing) hosting platforms without having to change your URLs. I'd argue that a similar thing happens with end-to-end encryption. A lot of users don't care or even think about whether their Twitter or Mastodon direct messages are encrypted, until a malicious actor reads these messages or a data breach has them released online.