Maybe you don't like rock and roll, but there's vibrancy to its beat that lets kids express themselves. Even if it isn't your kind of music it's their kind of music. Perhaps the generationgap may be narrowed slightly if you'll listen.Life, remember, is a process of give and take. Adults and teenagers have to give a little if they are going to reach mutual understanding• If, in the beginning, you've given the basicthings — like faith, love and respect, then you've nothing to worry about.But it's never too late. For instance — have you gone with your teenager to church lately?