Love has no age limit. It can find you young, or old. But, I assure you if you go into any relationship thinking "it won't last" you are just wasting your own time as well as his. But I am not seeing the connection. The question asked if it was common to meet the love of your life, and the statement you made was dating never lasts......can you be a little bit clearer, or am I the only one a little confused.....
It is very common to meet the one that YOU think is the love of your life at 13. Although some who have met at 13 have been together till the end of their days, it almost never lasts. Love and heartbreak are part of growing up and learning how to truly love. Although you feel as if you are the only one who has ever experience such depth of emotion, everyone does. You are not special in this respect. This feeling you feel (although all consuming) is not real love. That can only be learned through time, maturity, and experience. This feeling will pass and be replaced by real love which so very much better.
Dating is about making a special friend who you share really special feelings with. With every relationship, you learn a lot about yourself and what is best for you in a partner. The memories you make with a person will always be valuable even if you do part ways if you two treat each other well. If you don't feel like dating is worth you're time right now, then don't do it just because everyone else is! Do it when you're ready and it's something/someone you enjoy. Being single is really cool because you can focus on yourself and your friendships a lot more. There's no way of knowing when/how you're going to meet 'the one.' Just make sure you are your best 'you' before you do so, that way you can be ready for a happy and healthy relationship!
most people, even adults, dont take relationships seriously. if you treat the girl as if shes the only one in the world, it will most likely last. if he/she dumps you, dont sit there and cry. move on. plenty of people out there. you just have to choose correctly :)