This brings up a good point. Most (all?) people get complacent to some degree or another. When you have a big event come along and disrupt, in particular, low paying jobs, suddenly the inertia of complacency is gone and people start looking for options. I think that's a large part of what we've seen here. That combined with the societal realization of how shitty service jobs are lead to a perfect storm of migration away from such jobs.