Suppose that someone in their 30s seeks a career switch. Perhaps they have worked in science/academia before and are looking to get into programming or something else for which their skills overlap only partially and their network doesn't overlap at all. Often, getting the first relevant experience is done through internships during or shortly after ones university education. Can an internship be an effective strategy to gain experience in a new field when seeking a career switch, or are internships typically strictly only for people with little to no work experience?
Asking for a friend.