As a day old, my little roo, Pickles, used to try to attack any object you held at him (elastic band, paintbrush etc) but he was so cute! Now he is 6 weeks old, cuddly and sweet. Always up for a cuddle!
Probably depends on how they were raised. If they got lots of attention and love they probably grow up to be loveable!
My 6 week old silkie (I think he's a roo) is very sweet and cuddly- I hope he stays that way!