Sadly this is so true. I have for thirty years worked in Mental health.In that time I have actively researched violence and aggression. and have for the past 15 years taught prevention and management of aggression courses. However the higher managers have always resisted the time taken to train people (my course was a week with a refresher every year) so when the SMS brought in their 2 day course they jumped at it. When talking to the course participants they have all said that the the initial course made them think about their own attitudes and behavior and that their confidence in dealing appropriately with violence and aggression was greatly enhanced.
15 tears ago many staff talked about being unprepared and unsupported when dealing with violence and aggression there were murmurings from government that they would address it. Alas I see no change.