To be able to get a job in the legal field, you need to have abilities in it.
From birth we are all given different abilities, and it is our own choice to develop them or ignore them.
If you by study have developed good or great abilities in the legal field, then your chance for a job in the legal system would be good even if you now are 70 years old.
But as we all know, age has a restriction on us, and our knowledge has to be so great that it surpass the drawback ages give.
If you don't have legal education, then I would lower my expectations, and try to find work where your capacity again surpass the age drawback.
Good luck to you
