Research tells us that some men tend to use alcohol as a long term crutch to get them through tough emotional times, and they are less likely to seek help unless they reach a crisis. This means that by the time someone comes to the attention of NHS or other support services they may already be dealing with complex and entrenched problems.
As anyone who's ever had any involvement with someone afflicted with drink or drugs, there is nothing anyone can do for someone who is not prepared to help themselves. Charles wasn't prepared to give up drink when his career was falling to pieces. And why? Alcoholism is a disease that tells you that you haven't got a problem. You are the only one who can't see it.