I have been on the Diaspora network for 4 years, wouldn't be on Steemit if not for one of the users recommending Steemit for my art and giving me 20 mBTC so I could sign up using AnonSteem.

It takes time and a lot of effort to move people (or at least make them also use an alternative), but I have actually done it with my family. Most of them are still on Facebook, but they use Diaspora for private family-stuff and are actually enjoying the privacy of Diaspora. But it was a long, hard journey and I would not have been able to do it alone. I drafted two other family members to help and even then you are up against peoples insecurity, even hostility to anything that is not mainstream. I never tried to push Linux on them, even though my wife and children are using it without any problems.

With Steemit is is a little bit different. I guess that the promise of the money-game will make it fun for some, but the lack of privacy (everything is public in the blockchain) makes it less attractive as a place for private photos and family chit-chat.

As for now I am satisfied with using Steemit as a place monetising my art, and Diaspora as the privacy-aware family network. As the Diaspora-user that introduced me to Steemit wrote: "Diaspora can be seen as the artist's home, their commune, and then they go to the market, bazaar, shopping mile of steemit where they can showcase their artwork."