If you have a specific career goal where a degree is needed, then of course it makes sense. I did my undergrad degree while also working full-time, often 40+ hours, though TBH two FT jobs sounds like a bit much. LOL Maybe part time is an option?
Otherwise, I'd ask myself what else I could accomplish with the time I would spend on classes. For someone who is smart and self-motivated, the cost might still be too high even if tuition is free.
For context, I have a PhD and teach at a college. ;)