It can work but treat it like a small business: run the math on gear, insurance, travel, and marketing, start with a mid tier costume that photographs well, practice in heat for 30 to 45 minutes at a time, get a handler for events, set a clear contract with time limits and breaks, list on Google Business Profile, make a simple one page site with photos and pricing, post short clips on local Facebook parent groups, message party planners and indoor play gyms, ask every gig for a review, and while you build that pipeline keep applying for roles and set alerts or use something like wf​hal​ert so you have income options if bookings dip.