In my experience, using unscented wipes to wash hands actually works pretty good . I use them when I am at art fairs as vendor. We usually do not have access to sinks and soap. I would not go to a fair with out them. I have not been ill from the experience so far and have been doing this for 7 years. On the other hand, I would expect that they are teaching life skills, even as young as kindergarten, and that washing hands would be one. Better to get in the habit younger than older.
I am curious about the hand sanitizers at public places. I have read purell is ineffective (but it is good for cleaning tarnish off silver-fyi), but what about the ones at the hospitals? My ds was just in for appendix and the nurses used them all the time. Are they a better formula than in the past?