Janitorial service at one time was the number 1 means of gainful employment for JWs. When my parents got married they wee pioneers. They lived in an apartment above a garage and paid the bills by cleaning banks after hours.
Like so many Witnesses, the have no retirement or health insurance. Contributing to a retirement system was believed to show a lack of faith in 1)the end coming before you needed a retirement or 2)that Jehovah would provide. Unlike my parents, I picked a career. I'll be eligible for retirement at 52 and will be living in a beach house.