Besides the obvious effort required and the monetary costs, as somebody who wears glasses and commutes by bike and train I can name a couple others.
After biking to the train station my breath is heavier than normal, and having to put a mask on when entering the train made my glasses fog up, so I would usually wear it under the nose (even those with a valve, because they still made it hard to breathe after biking, although a little easier).
Otherwise I would be unable to use my phone nor laptop and I would have nothing to do for most of the commute.
My glasses would also fog up when entering indoors locations during the winter, so I would have to clean my glasses and mess around with the mask to make the air come out from the bottom.
There's also no clear upside for me given that I rarely get sick, the last time I had a fever was in 2022 and the time before that was 2017.
Besides the obvious effort required and the monetary costs, as somebody who wears glasses and commutes by bike and train I can name a couple others. After biking to the train station my breath is heavier than normal, and having to put a mask on when entering the train made my glasses fog up, so I would usually wear it under the nose (even those with a valve, because they still made it hard to breathe after biking, although a little easier). Otherwise I would be unable to use my phone nor laptop and I would have nothing to do for most of the commute. My glasses would also fog up when entering indoors locations during the winter, so I would have to clean my glasses and mess around with the mask to make the air come out from the bottom. There's also no clear upside for me given that I rarely get sick, the last time I had a fever was in 2022 and the time before that was 2017.