Are teen boob jobs about confidence or something else?

Let me get this straight, if you gaze at a woman’s boobs she gripes, if you talk to her chest she gripes, comment on them and she gripes. How many times I have heard the term of wanting to be more than a body part. What is behind so many teen girls wanting to get boob jobs? Be it covered on Oprah, Tyra, Nightline the girls say things like it gave them more confidence, they did not want to be the only one in the posse still in a training bra or the only one not filling out a swimsuit; even the ubiquitous “feeling more like a woman”. Shouldn’t the confidence come no matter what chest size you have? And do the parents who relent or give boob jobs as gift acquiesce to the fact that near flat-chested somehow is lacking? It has gotten so bad Italy at one point had to address it http://www.newser.com/story/76081/italy-to-ban-teen-boob-jobs.html. Is that what it will come to here? Can a young woman really have full confidence at size 34A or does she really need to have more?