During the COVID lockdown, one of the most frequent questions among my friends (from the category of first-world-problems, that is) has been, "When will hair salons re-open?" They need a trim or to have their roots and highlights retouched. When I’ve Zoomed with these women, they look lovely, and their hair looks the same as when the salons were open. Luckily, my friends are law-abiding types; none of them is…