Ethics in Advertisments

After researching many articles and advertisements that include alcohol it seems to me that their main target market are people under the age of 21 up to about 23. A lot of the advertisements included celebrities. I know the celebrities modeling for these alcoholic beverages are of age but many of the teens who look up to these people aren't and if they see their role model in ads for alcohol they think its the "cool thing to do". An example of this is Coors Light Beer. Two of their advertisements include young celebrities. I feel that they need to up the age of their target market and try to appeal to more of an older age group. This may not help much with under age drinking but trying never hurt.