The trainer won't have a clue as yet as to how you are able to lose the ego and empty your mind. I 'liked' the above comment as I too feel the trainer is on a loser, as you are going in with your own fixed ideas, that may take several sessions to loosen.
If I was an adult beginner (but had the knowledge I have now which of course I wouldn't have) there is no way I would go for lessons at a general riding school. I would find a classical establishment and learn on a machine and then on schoolmasters. Not because I want to ride in that style but because one would get there a lot quicker and become lighter and more skilled.
Grajo, Red raises some good points about riding ie someone wants to get on a horse and have a good belt around or they want to learn the "art" of riding. They are different things. (neither is right or wrong)
What are you hopes? Are you aiming for your own horse? just something to do once a week. Where do you see yourself going?
after reading post no. 14 I googled Widley and looked at their horses. I do wonder if teapot is right but of course it depends on what you are aiming for.