It is pretty hard to break out but people still make names for themselves either from experience on assignments like the old days but also from instagram and other social media followings. People still need weddings shot and professional portraits taken which takes some skill in understanding the logistics of how to actually do that job well efficiently and managing your equipment.
Demand is way down because while a $5000 lens on a nice camera is better than my phone lens, my phone is close enough for most purposes. Also my phone is free, in the days of film a single roll of film by the time you developed it costs significant money (I remember as a kid getting a camera for my birthday and then my parents wouldn't get me film for it - on hindsight I suspect every roll of film cost my dad half an hour of work and he was a well paid software developer). This cost meant that you couldn't afford to practice taking pictures, every single one had to be perfect. So if you wanted a nice picture of the family it was best to pay a professional who because of experience and equipment was likely to take a much better one than you could (and if something went wrong they would retake for free).