Hypnosis is a deep state of relaxation during which your subconscious mind is open to suggestions. A hypnotist will guide you through a sensory experience, using visualization techniques to help you to relax your mind and allow yourself to let go. It is a normal state of mind that we experience every day in different ways. For example, you may be listening to music and find yourself drifting off into a peaceful relaxation while driving your car and find yourself at your destination, not knowing how you got there. Your subconscious mind was on auto pilot, keeping you relaxed and operating the vehicle while you enjoyed the music. Your subconscious mind, even while hypnotized by the music, keeps you perfectly safe continuing to drive the car. Just as people in a hypnosis show will always keep themselves safe and won’t do anything they would not normally do.
Hypnosis is not brain washing or mind control. You cannot be made to do anything outside of your own moral compass. It is nothing like how they depict it in books or in the movies. People who have been hypnotized do not lose control over their behavior. They typically remain aware of who they are, where they are and they usually remember what happened during hypnosis. They are just so relaxed that they comply and receive the suggestions willingly.
Anyone can be hypnotized if that is what they want. One of the requirements is that you are a willing participant and are not being forced into hypnosis. A Hypnotist or Hypnotherapist will not force anyone to do anything and will not allow others to pressure you into being hypnotized.