In what way do they need you?
Chauffeur - to school, tennis, hockey, piano lessons, parties. Every week an endless round of driving her. Occasionally there is a muttered word of thanks. Oh and she is permanently late so getting her in the car to get to these places on time is a major battle fought with grimness and determination on my part. There are no buses by the way. Hence my advice to all prospective parents is to live on a bus route.
Cleaner - incidentally, did you know that parents of teenagers get to be screamed at when tidying the teenager's bedroom? I have a cleaner but if I screamed at her she would leave. Not an option for parents, more's the pity. I tell you if parenting a teenager was paid employment, I'd go on benefits.
Clothes fairy - cue more unreasonable behaviour
Cook - the same sort of nonsense as when they are 3 'Why did you put mushrooms in the boeuf bourgignon, you know I'll only have to pick them out?' 'Because it will taste entirely different and WRONG without mushrooms, you obnoxious brat, you should be grateful to have decent meals prepared for you.' The rest of the sentence after the word 'mushrooms' was said silently. Otherwise WW3 would erupt
Bank - get used to endless withdrawals and no deposits.
Clothes police officer - 'No DD, you are not wearing 5" heels. That is ludicrous and dangerous and in any event you have been blessed with height so in 5" heels you will risk creating a wobbly giraffe effect"
Psychologist (this is the most time-consuming role - it involves hours and hours in the evening) - If friend A is bullying friend B, then ditch friend A. It really is that simple. You don't have to spend hours wittering on about it.
Teacher - this is a doozy, this one. After years of being mulish and unco-operative and refusing to learn any modern foreign language, it has just occurred to DD that she has to do one for GCSE and she will not do well in it. So I am cast in the role of supplementary french teacher. You try teaching your daughter GCSE French. We're averaging an eyeroll every 30 seconds.
I am sending her to board in the sixth form. No, really, I am. I have a marvellous line about boarding being such a wonderful staging post to independence. It makes DH giggle every time I trot it out.