Sore ears?
Use ear savers - loads available online and they can help make the gaps at the sides better too
Or use a different style of covering rather than a mask - a neck gaitor style with filter, etc. All easily,available and not expensive.
Lung function?
Absolutely tons of videos online by medics showing that lung function and oxygen levels are not reduced when wearing a mask of facial covering.
Glasses steaming up?
Again, there are different styles which can help. The masks with hidden nose wires can help according to my parents.
There should be very few adults who can't wear one genuinely.
For others it may just be that they need a bit of time to get used to wearing them as they feel uncomfortable initially.
But the reality is that if you want to go our shopping (and most likely other indoor locations soon) and you don't have a genuine health issue or exemption, then you have no choice. Wear a mask and go out. Don't wear a mask and stay home.
Round here the elderly are already wearing masks when shopping. And the younger people are happily wearing them without complaint ( and not just because their face is Heiden so they can commit crimes as someone declared in another thread!) We have a lot of Asian students round here so they've always been wearing them. I've noticed a large proportion of the BAME population locally wearing them round and about town.
It appears to be the middle group - and I have to say the white British 30-50s type age of men and women doing the most complaining about it, based on my observations locally.
They're being worn around the world by adults and children alike. In most countries there hasn't been anywhere near this level of fuss at all. In some countries they're worn all,the time anyway and have been for years. Strangely they're not dropping like flies for years in end due to lack of oxygen.
Im starting to think that we need to be somewhat more resilient than we correctly are in this country.