Carers who look after vulnerable people can treat people in their care terribly, even get sacked, and just leave and find another job. At the moment the only thing that will stop this happening, is a criminal charge, But criminal charges can be hard to get as the people who are being badly treated/abused are often incapable of giving coherent statements or evidence in court e.g. people with dementia, confusion, severe learning difficulties.
A national register would mean that someone who behaved badly could be struck off and would not be able to get a carers job anywhere. This would protect the most vulnerable adults.
And yes, I am posting this because of a personal situation where a carer behaved terribly, and nothing is happening. The carer continues to work with vulnerable adults.