Not just qualifications and experience are required.  The right temperment to care for the young or elderly is a must.

Just in hospitals I've seen staff who haven't the patience for the job.  Thankfully most are great but there was one staffer who was rude, demanding and unrealistic in an expectation what some patients could do for themselves.  Last I heard, the staffer was on report.  Hopefully that person will not be staying in that hospital.