My son (a teenager) cannot stand to think life without his Crocs! He used his last ones until the sole was almost completely smooth with wear ( three and a half years of almost non-stop use!), and until the new Crocs for "replacement" were received. I already gave up on insisting to him to wear less casual shoes for less casual ocassions (like going to a family gathering or a restaurant). Everytime I look at him, if his not barefoot, he is wearing his Crocs!