Don't really get why adults are arsed about eating inside a football ground anyway. Drinking - yes. Have summat to eat beforehand, or after. You're only there for about two hours.
Must be 25 years since I've bought out to eat inside a ground. When I was a kid, the range of the food was mad considering. Only chocolate was stuff like Wagon Wheels, no crisps: just them horrible savoury biscuit things (Fish 'N' Chips). Real treat for the kiddies.