Happy Detachment
The way I had been brought up, I thought attachment was so necessary that it could almost take the place of something that brought merit. Being attached to home was considered to be a desirable quality. Being attached to family meant that you were a good child.
However at 23 and having learned a lot of lessons, some of which I would like to perhaps unlearn and some, relearn I can bet on the fact that attachment in a sin one commits only for his or her own downfall. Now I really do not want to sound preachy but this has been pretty much the most important learning I have had from a variety of different incidents and their outcomes.

Beginning from adolescence, things that matter the most to you is your your home, family, sports and food. As a teenager, one gets attached to friends, beauty, music, fashion and sports again. As we grow up, the level of attachments rise up to reach more dangerous stuff like social image, ego, peer affability and a lot of times, money as well. Then concepts like ambition, travel, fame, luxury etc also creep in to the extent of making a person go cuckoo. Then there are super concepts like family, religion, lifestyles and the likes, attachment to which can make anyone go haywire.
And this just goes on and on until one day you sit up straight and tell yourself - This is not how its going to work. It may work for others but does not happen for everyone. You tell yourself, I am not going to bend myself to be liked or tell myself to like things and people if I dont like them. You tell yourself, if you are not attached you are free to fly. Detachments gets you rid of troublesome good-deeds, endless expectations and forced commitments which are by products of feeling attached.
One would want to argue that he or she wants to have a feeling of belonging. But truly speaking, that feeling is only in one's head and does not exist for real. Its a concept that has been fed into our heads to tie us down to families at micro level and political boundaries at macro level. When I was younger I always felt the need of having a stable household to keep going back to it. Then an older friend argued that you would never feel homesick (which I used to quite often and ironically do so even now) if I considered the world, my home. Here fits in the concept of Vasudhaiva Kutumbakam. How wise early mean really were. I dont always vouch for all such concepts because most of them are quite contextual but a lot of them do make a lot of relevant sense even today. Another example could be the Geeta Saar.
Anyways, not digressing further I would just say the mountain of attachments keeps building up if we don't keep a conscious check over it and may reach a point where we are bound to crumble under its weight. So as a young person, I would like to say to all those like me who think a lot, are very curious about life and do not want repeated disappointments that not having something is a thousand times better than having it and then losing it. So if you are yearning for something, achieve it and move on. If you dont get it, its cool because then you will not have the responsibility of preserving or protecting it. So just stop waiting on events. Quite simple, ya!