@MelissaBearTrix most of the time.
I'm not visually impaired. I do have myopia and astigmatism. I also find concentrating hard and have light sensitivity.
Alt puts screenshots of text into my choice of font, size and colour, making them much easier to read.
I often don't recognise people in photos, so alt helps me work out what's going on.
Sometimes I'm just curious as to what it says and can be treated to words that are just as pretty as the picture.