The argument for tighter control is fair when you see all the US based ‘internet psychics’ Who tell you you have a big window coming up that will mean vast sums of money will come your way, but to take advantage of this’window’ you need a full reading which will cost $60.
Also there are the “fortune Tellers” who will tell your fortune, though some are psychically gifted and can sense things, often they are picking up from your aura what is on your mind and interpreting it, and sometimes just telling you what they think you want to hear. For £5 on a sea front, these are often taken by people with a pince of salt, though if someone walks away from a job or marriage “because a psychic said to” there must have been doubts already present.
Mediums and spiritualism is different, in that Mediums receive messages from those who have passed over to ’spirit’ and whilst there is no scientific proof of the existence of ’spirit’ then the same applies to ‘God’ and all other Religions that pronounce upon “a life after death”
If Spiritual churches are now to declare that the demonstration of Mediumship is for entertainment only, then so should all churches where there is service that involves any mention of ‘life here after’ Or those that propound reincarnation, as no ’scientific proof’ exists of that though many examples of regressive hypnosis have been documented.