I think a coloured carpet would be awesome, but then I think of the practicality, whenever you redecorate that room would you change the carpet? If it's something you want though go for it
We've been to look at carpets today and I was surprised at how many coloured carpets there were, they had glitter carpets , leopard print, and zebra print
Don’t let anyone’s opinions put you off! Put whatever colour carpet down you want, and if that’s what your daughter wants even better! I wish my mum decorated my bedroom as a child!