Save the Inheritance Money
We can only imagine how nice it must be to have rich parents to fall back on. Imagine finding out, though, that they are wasting your inheritance money on something pointless like yogurt! This OP seems to think that £12 a week is too much to spend on fancy yogurt.
While that may be the case, they seem to conveniently forget that at the end of the day, it’s not their money at all. Their parents have worked hard to earn it and are therefore free to spend it however they please. We’re sure they will save a little for their beloved child so they shouldn’t be too worried.