DD's boyfriend has pretty severe asthma plus a lung related condition. He wears a max and it has no impact on his breathing.
Not everyone with asthma, even severe, can't wear one.
In France very few people weren't wearing masks - it seems they have less exemptions perhaps because we saw people of all ages, ethnicities, sizes, sexes m, etc wearing masks.
In London yesterday more people were wearing masks except for the anti mask/5G conspiracy protest march down oxford street bleating in about loss of freedom. I did not appreciate a middle aged man thrusting paper into my face whilst I waited to go into the Disney store with Dh and dd and placing himself within a metre of me. He was ranting about us (the shoppers) being within the 99% and we didn't need to wear a muzzle. Actually I am not risk free (clinically vulnerable) and I can chose to wear a mask.
From what I could see it also gave me more freedom than he has right now - I've just been on holiday, I've can use public transport, I can use hotels, I can go shopping, I can eat out, I can visit local attractions, etc. If he chooses not to wear a mask then actually he has less freedom to do much pf that stuff right now anyway.
The protestors were almost entirely white and middle aged, a few slightly younger (but didn't see any teens) and very few much older people. There were maybe a small handful of BAME but minimal. More men than woman. There appeared to be some overlap with the racist/anti BLM/ EDL type protest we'd seen earlier in the day.
On the train and underground most people we wearing masks. The young and old were almost always wearing them, and wearing them properly. I was pleased to see that compliance was pretty high.