She's treated this way because of a religion. It's not any different to little girls taking communion, or wearing traditional Muslim dress because Mummy does.
There are worse things you can do to a five year old.
To stretch a point, I know an 8 year old girl that is merely a poorer equivelent of Suri cruise - she's had heels, handbags, lipgloss and her parent's undivided attention since she was old enough to point a finger. If she doesn't fancy her dinner, she's made something else, to her choosing. She's a delight.