As a sexworker consultant I have seen and talked to many sexworkers, male and female over the past 5 years and the number 1 reason is always ease of money but combined with validation seeking or just a way to explore their sexuality while staying in control of the interaction. Every one of them started out trying with low wage paying jobs and realized it wasn't ever paying enough to finance the life they want which isn't anything extravagant. They want to go to college without going $50k in debt. They want to have their own apartment without sharing the space with 5 roommates, they want to be able to travel and buy groceries and not worry if they'll be laid off next month.
I'd say, ever increasing costs of living and minimum wages not being enough to afford a normal life is what drives more people to sexwork.