I don't see government regulations necessarily being at the crux of people's life changes in this biz necessarily - most people I've met over the last 5 years are still around and have aimed to work within any regulations that have arisen in that time - a great majority have adapted and are still here.
I think people's decisions to stick around will have a lot to do with whether or not they're willing to adapt to an industry that is in its period of self and external regulation - every new industry goes through this phase at some point -- and, it's always dependent on what's going on in their personal life.
Now in terms of me personally - right now I'm just trying to tackle each year at a time