I don't know where her birthday party was, but in California she couldn't legally have had it in a bar. I think that there very likely is more. I doubt her father is just worried about a little drinking and getting stoned on one occasion. I don't think Hannah Montana is the only reason the Cyrus family has problems, but I would not be surprised if it were a factor. Teenage stars aren't treated the same as other teens and don't get to develop the same way as others do. But, there's also bad parenting, which could include their decisions about Miley and her career. I also have the impression that her parents have pretty much been giving her free reign for several years. A lot of parents would not have been okay with their high school daughter dating a guy who already was of drinking age. I get the impression that the parents realized a while ago that they had made a mistake putting Miley in the public eye and entertainment business. I heard somewhere that they decided that they didn't want to let her younger sister do the same thing.