I agree, find another instructor!
You are a paying customer, and even though I assume there is an age difference, get him off his high horse.
Report him to the school owners and tell them he's a
ignorant ****, you are highly dissappointed and will not recommend this school to anyone.
Then tell them why you feel like that, and demand to fly with another instructor.
You're paying - you're the king.
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I can only say, I've had the pleasure of having a very young instructor for my PPL. He was about my age, and does the instructing to build hrs (as all of them do I guess). I finished in min. time and we always had a blast flying together, it was pure joy.
I still regularly call him or see him, and we also plan a huge cross country for sometime this winter. Not as instructor / student, but as friends.
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I wish you good luck. Let us know how it goes. It's never too late, and you'll soon find out that there's mostly great people in this industry. It's the black sheep that stand out.
