I'm not in the US but 1st world country with similar dynamic. I recently retired from a military career of 20 years due to disability and have been looking to study towards a new career. I did one year of a science(Biology) degree in the early 90's before joining up, and wish sometimes I had stayed with it.Part of being older and financially settled is I don't need a world breaking salary or dreams of being the Thomas Edison, I am just after a respectable career with moderate earnings to see out the last 25 years in the work sector.( say until I am 65 or so). Biology- From what I can gather, biological sciences are sort of like the new arts degree, aka 500 applicants per 'marine biologist' job. For most grads your degree will probably just be a CV booster towards non science or business roles? Math- I'd love to do it, but I'm thinking its not something a "mere moderately smart guy" can get through with enough work, like say you could do with biology. Do you need to be truly gifted to pass the later years of a degree. And even more gifted to get a job? I am thinking yes. Easier math- statistics- is there much in finance and insurance related jobs? Engineering is still a solid performer I hear in most sectors? Chemistry? Do industrial chemists still exist? They always seemed to have jobs when I was young, maybe they are called something different these days.. My post is too vague sorry, but any input will be appreciated.