cleavage is always hotter than what they give way to

no this is about one of my personal experiences, and no there is no justification to the title , i just liked the phrase , i used it .
To all those who have gone through my previous blog-thank you.
All those people who give up on their branch , either because of the branch or more often than not because of their own feeble efforts in making their choice right if not making a right choice start wondering how did it all start ,3/4th deep into the waters already. I really don't want to sound a loser whining about how unfair it has been to me and all , seriously i don't, ya i know my previous blog suggests otherwise.for now though i am not here to whine. So, during one such contemplations the same old question popped up " is it really right to choose what you want to be and do in future based upon your performance in an entrance exam which doesnt even test you in those fields" and just to make things clear, i am putting up this question here just because it makes up for a good debate and on my part i will forward my views on it or atleast try and put things in perspective for may be you guys to give your views.
Personally i think iits at least should have a screening procedure to maintain certain basic standards among its students to keep producing the kind of engineers or people (if 'engineers' sounds way too technical) it has been known to. It also becomes necessary for the students to have that potential in them to survive in a place like this . So i for one think there must definitely be a selective admission into such institutes but it is with how one gets to choose his majors that i lack coherence. Shouldn't one be free enough to choose what to do, wont the best in him come out when put to work under free forces within his concise . But having said that i really doubt if there is an alternative at all to this.Hardly 1 out of 10 during their counselling is even able to make an educated guess as to what should be his major for the next four years and may be beyond. And it is newtons -1th law that if left alone 9 out of 10 would opt for CS and not necessarily because they see themselves as software professionals, so that isn't freedom of choice either. Apparently even the iits have been thinking about this problem and rumour goes that one suggestion they have come up with is to allow students to chose their majors after the 1st year,which is mostly include introductory courses to all the depts. Anyways dont ask my why am i even writing this blog,just a bit too jobless.