[2006alum]

 It would be interesting to know whether most of the people who got haircuts were not among the high risk groups.

Why?  Perhaps you're not under the impression that younger adults are less likely to get infected, and you're just looking to see if older adults were foolish enough to risk close exposure.

Well, mostly my thought was that younger people are probably more likely to be asymptomatic if they are infected, so if >50% of those exposed were never tested for COVID-19, if they were all young people, the lack of symptom development might be less surprising than if they were all older people or those with co-morbidities. And if they were all grannies in their 80s and there was still not one single identified infection or set of reported symptoms, that would suggest we can "re-open" personal services like haircuts quite a bit and, with appropriate precautions, have relatively little to worry about.

[2006alum]

 It would be interesting to know whether most of the people who got haircuts were not among the high risk groups.

Why?  Perhaps you're not under the impression that younger adults are less likely to get infected, and you're just looking to see if older adults were foolish enough to risk close exposure.

Well, mostly my thought was that younger people are probably more likely to be asymptomatic if they are infected, so if >50% of those exposed were never tested for COVID-19, if they were all young people, the lack of symptom development might be less surprising than if they were all older people or those with co-morbidities. And if they were all grannies in their 80s and there was still not one single identified infection or set of reported symptoms, that would suggest we can "re-open" personal services like haircuts quite a bit and, with appropriate precautions, have relatively little to worry about.