to think niece shouldn't need to ask for food everytime she visits?

[ilovetochat]

I know that sounds awful and i don't begrudge any child food, what i mean is why don't her parents feed her?
dn is 8, when she comes to visit with her mom and dad (dp's db and dsil) she always asks for a sandwich or what's for dinner and if we say haven't you had any dinner she sometimes hasn't even had any breakfast.
they let her snack and eat take-aways every night. she has been here for an afternoon, arrived at 2 and asked for food, turned out she had got up late so they brought her round without breakfast or lunch.
obviously we feed her but she isn't used to proper food so doesn't like much and wants fizzy pop to drink which we don't have.
dp has said to his db that dn is hungry and he just says we are going to the chippy on the way home.
reading that back i sound like i'm just moaning and you will say iabu and should just feed her.

i don't think she needs more attention, she gets lots of attention and everything she wants materially too, she always has friends round to play and is always centre of attention, dictates whats on tv, wants people looking at her, shows off.
i am just going to try and praise her a lot when she does anything good but we see them every few weeks so it won't make much difference i don't think.