Agree with the above; your age or anything else about you should have nothing to do with the way you are treated. For what it's worth, most students of your age are very rewarding for us crusty old instructors to teach, being able to learn new skills quickly, with bundles of enthusiasm, and not too many life complications to get in the way of learning.
Many people make the mistake of staying at a place that may not suit them because they get on well with a particular flying instructor. And why not, most of us are quite nice! HOWEVER remember that your instructor may be a nice bloke, but that doesn't necessarily make him a good instructor. If you're not comfortable there, shop around.