To get physically fit for the entrance tests and also for the demanding physical nature of the job. Also I would tell people to enjoy themselves before they join as it’s a job for at least 30 years.
I would also informl people about the variety of avenues people can get into when they have completed their training. There really is a career for every person regardless of where their interests lie. There is so many specialised units and prospects.
The Social person's interests focus on some aspect of those people in their environment. In all cases the social person enjoys the personal contact of other people in preference to the impersonal dealings with things, data and ideas found in other groups.
Many will seek out positions where there is direct contact with the public in some advisory role, whether a receptionist or a counsellor. Social people are motivated by an interest in different types of people, and like diversity in their work environments. Many are drawn towards careers in the caring professions and social welfare area, whilst others prefer teaching and other 'informing' roles.