Question regarding my mother's running

My mother is in her early 70s
and recently started running.
She has been a homemaker her whole life, but she started this
after recently dealing with some health issues.
She runs 7 kilometers at a 5:20 pace;
is she considered a pretty good runner at that level?
I told her to only run twice a week and not to overdo it,
but she insists it's not too much and wants to run every day.
Are there any specific running programs designed for seniors?