According to Dr Fauci (SP) in the USA, whom I personally think speaks alot of truth and sense, he has said along with some others that it is now proven that masks protect the wearer.
I'd feel better if she wore one if she was my child. But if she won't then the concequences are on her.
My ds has asthma, he wasn't allowed on the bus without one, he needed to get to work so wore one the following day, he was actually OK, he got hot at times, and he also kept breathing normally which helped, I say normally because in his words, putting a mask over your nose and mouth feels like drowning and you breath faster making it difficult to breath.
We did think asthmatics couldn't wear one and checked with gp to see if he could get a letter etc but gp said it's fine to wear masks with asthma, we were convinced it was not a good idea. The only thing ds can't breath with is heavy material, he uses the disposable blue and white ones.
Working serving food and customers people should be wearing masks, I see pictures of pubs restaurants opened here since last week in Ireland and not one server is wearing one. It's just not worth it, people think they are invincible, my sil tested positive yesterday, she's been going around spouting that covid is a hoax and only fat sick people get the virus.