I have been in the UK employed as a Social Worker for the last year. I work for a Local Authority in a long-term child care team....child protection work basically.
My major for my bachelors degree was psychology, my masters degree was in Social Work. I wish I had focused more on foreign languages, computer, and history classes. As far as a minor, I don't think a minor really matters.
It is not hard at all to get a job as a Social Worker in the UK. However, they may want experience if you do not attend s school or having internships in the UK.
I like my job, but it is stressful. It seems like it is acceptable within the culture to be hostile and critical towards social workers. However, I think the area of social work I am in, child protection, has to be one of the more difficult areas to work in. But, it is also one of the areas that is highly recruited.
HTH,
Don