I would say it would be easier to count who isn't on any than who is. I used to work in the mental health sector, a lot of my colleagues were past/present mh service users although we were functioning.
I have a lot of other friends who have chronic pain as do I and have been prescribed them to help with that.
Other friends who have been on and off them over time, the way we all think about it is, like a pp mentioned if it was insulin and we were diabetics there would be no problem and it is the same with antidepressants.
I took part in a stigma related MH campaign when I was a volunteer with the organisation I went on to work for. For record's sake, I have been on them since I turned 13, with the first mh hospitalisation when I was 15 and have been on them and many other mh meds since, so 30 years.
It's my equivalent of insulin and while there have been low patches where I want to die, I would be long dead only for them.
I have had every other therapy that was available in the first 15 years, ECT brought me back from the brink and antidepressants did the rest of the help. So if it means I have to take 2 types of antidepressant along with other mh meds for the rest of my life, so be it.