I've been really into bitcoin since early 2013. My wife? Not so much.
She's tolerated me, even when I started a local Nashville Bitcoin meet-up and got voted onto the board of the now defunct Tennessee Bitcoin Alliance. It's always just been "Luke's thing."
That was before Steemit.
My wife's journey on Steemit has been really fun to watch. At first she was confused why I was staying up till 1am and 2am every night and then getting up around 6:30am to check my computer first thing. She was slightly hesitant when I decided to invest half a bitcoin into it. When I told her I wanted to put in more, she trusted me. She's seen the rise of bitcoin since early 2013 and how we paid down some of our mortgage with it.
It took a little more effort to get her to sign up. She's into photography and has been doing family photography as a side gig while raising and homeschooling our three children. I kept showing her cool stuff from #photography and encouraged her to post her own. She finally did. Then there was a photo contest which she had to enter. Before long, she was hooked! One night I remember her waking up out of bed to come back to the living room around 1am or 2am to join me with an "I can't sleep anyway" excuse as she worked on another post. I was so happy. :)
She spotted outright identity theft and facilitated a great discussion about fair use. She even got a nice 100 SBD reward from 
My wife exchanged her first cryptocurrency.
Mostly on her own, she created a Bittrex account, sold some SBD for bitcoin, created a Coinbase account, and eventually bought a $250 Amazon gift card via Gyft. It was real.
Steemit really is the trojan horse for mass adoption of cryptocurrency. Once we build out the various niches for this social media platform, the communities will come. It might be #photography or maybe #anarchy (well, okay, maybe not that one, most of those guys are broke), but each category has the opportunity to draw in new members.
If Steemit can get my wife on board, it can get anyone on board.
If you want to see more of your friends on Steemit, start highlighting and building out the categories you're most interested in.
If you build it, they will come.
Is your significant other on Steemit yet? How did you get them on board?