Why?

Why do we seek love at such an early age? Why is it we feel the need to already settle down for the rest of our lives? Arent we suppose to live it up before its to late? Dont we have the rest of our lives to worry about relationships and love? I like being care free but my heart wont let me be lonely. I cant have the best of both worlds, Why cant i just live life with the love of my life right now? Why?