You feel bad because you are acting like a jerk. My mom isn't all that sophisticated, but I would never dream of being embarrassed by her. My friends all love her because she's warm, friendly, funny, has a lot of common sense, has a great sense of adventure and a sense of humor, and is so kind and supportive. What's embarrassing about that? So what if she doesn't pronounce words right or doesn't know how to use an iPad? She's awesome. She's one of the few people who loves me unconditionally, and that's worth more than any amount of sophistication.