Is £100 a wee living allowance about right?

[Dancesaideveryone]

DS off to university. He's paying his halls from savings and part-time job. I'm planning (hoping) to give him £100 per week for all living costs.

Is £100 enough? Too much? It's to cover everything like food, clothes, going out, any contracts (mobile) etc.

Any comments are helpful.

All of which is fine if OP has budgeted for those potential extra weeks as well.