In our house we don't even have scales! I am completely unconcerned about weight, its just a non-issue here. We eat a fairly healthy vegetarian diet - eveything in moderation kind thing, so chips if we want them, cakes/chocolates/sweets every now and then, etc. She's aware of the need for plenty of fruit/veg, limited salt/sugar etc but on very general health grounds.
Neither of us are remotely overweight, she's a normal sized nearly-six-year-old (if nything rather thin, I'm always taking her trousers in) and I'm about a size 10.
But down she comes this morning and tells me she is not eating sweet things ever again because she is on a diet so she doesn't 'go fat' She doesn't really watch TV so can't imagine it comes from something she has seen, family members aren't likely to have mentioned it... So no idea where its come from. Is this just something girls do? Do I dismiss or discourage or ignore?