Ok. Say you have a 20 year old that has been out to a club and has been exposed to covid for obvious reasons (proximity to people, less likely to be vaccinated etc).
Next day they wake up and need to go to the shop (next day is a bit silly as they wouldn’t be infectious by then but I hope you get my point). They have made the choice to go out and be somewhere without restrictions, which I am fine with. I do it myself. But when they go into the shop, or get on public transport they are around people that haven’t made that choice. And you don’t know who those people are or what their situation is. So is it that much of a hinderance to your life to simply put a mask on?
Again it's not about wearing the mask, it's about who has to and where.
Telling people to wear a mask on buses and shops does nothing to reduce the spread of the virus to begin with. Because they know for a fact it's younger people who have the highest rates. So not having masks in places that young people generally gather indoors does nothing to stop the spread.
So say this version is worse , say it does bypass the vaccines altogether. What this mask thing does , is absolutely nothing. It means that new variant will spread extremely quickly around the country like delta did because the highest rates of infection will continue to gather in their numbers indoors without a mask letting it spread quicker.
You see what I mean now? It's not about catching it in Asda , it's a preventable measure that will not prevent anything from happening because it doesn't address the known factor already, it caters more to the lower spreaders. Because if it was about potentially reducing spread , you would attack it at its source, not it's end product.