You guys, this young woman will be working with an organization, locals will be looking out for her, she speaks some Spanish, and this is OAXACA and not, say, Syria, we’re talking about. A little perspective, please, Xiggy. And we all know that the only thing you hate more than teachers are teachers’ unions, so any place where they try to leverage some power in the form of protests will be on your bad list 
A parent should be a lot more worried about sending their kid to University of Chicago, Columbia or Yale than to volunteering in Oaxaca…