My son has made a competition of many things, even when very small. He is an only child. I haven't particularly encouraged it. Now he is 5 and he cannot cope with losing, in fact it stops him from participating in some things because he throws a tantrum if he loses. I have had endless discussions with him on how we learn things, how I got better at things (i.e through perseverance) but to know affect. He goes to swimming lessons and is fairly ambivalent until (occasionally) the coach has races, then he is at his best. What do others think..... nature or nurture.....