Changes in life - new job path necessary. Tell me what to expect & the Pros and Cons of phlebotomy as a late life job path.

I quit my job in 2020 - the sudden death of my father made me the new care taker for my mother with dementia. That lasted 5.5 years and I am now 60 yrs old and finally at a point that I need to figure out what to do regarding income. I traveled a lot in my last job (15yrs) and don’t see myself putting chains on my tires in the winter and dodging deer on the mountain roads. (Colorado)

I have been leaning towards phlebotomy and taking the courses at my local college and passing a background check.

I live in an area of approximately 100k population so I am hopeful for enough work.
Will my age be an issue?
Do you see this path lasting me 10 or more years?

Any information provided is sincerely appreciated.