I guess I have an advantage, no wife or girlfriend and no kids.
One thing that gets me riding a lot is where I live. I have no car and am far enough out of the city that taking buses is a real pain in the ass. I also have trail connections to the Gatineau parc from my back yard. My school also has trail connections to the park right at the school, and I have some pretty big spares. So I have lots of access to the trails and am forced to commute 12 km to school or 25km to work every day. And all my friends are obsessed with riding so that helps alot.