Are you saying that your brother is vaccinated and is very ill with the Indian variant? I thought that in countries where that variant has spread (particularly Britain) only the unvaccinated were getting sick with that variant. If that's not the case, then that's really, really bad news.
My state dropped the mask requirement on Friday at midnight, and almost immediately nearly every business in our area dropped their mask mandates right away. It's frustrating to me, because I have two partially vaccinated children (they got their first doses on Thursday) and one child who is not eligible to be vaccinated until July 20th. This will really restrict their summertime activities - I can have them wear masks when we go places, but I'm in a pretty anti-vax county and I expect unvaccinated people to shed their masks pretty immediately, so the kids wearing their masks won't be enough protection.
children wearing mask should still have a 17-30% protection from direct exposure while wearing mask.