It's not seen as a professional job. It means the staff are dealing with more behavioural management problems, as well as first aid issues. You need constant drugs training to know what you are dealing with. Shortages of staff, she says, or the absence of the right kind of staff, can exacerbate the problem. That's not good for the staff or the teenagers.
Pay is a big factor in discouraging people from working in the sector.
Clearly, these people are not in the job for the money.