Even that £100 a month for dinner money seems a pretty low estimate - that's only £2.50 a day based on a 20 day month for 2? I'm pretty sure school lunch is more than that isn't it? Or is that only for 1 of them? Which ok the younger one is getting school lunch but the older one still needs a lunch too and if they're still counted for cm then £100 is low for lunches for 2 of them.
Uniform is really expensive!
"There is so much to costs for teenagers than what you've pointed out. mobile phones, pocket money, school trips, every day clothes, revision books, activities, driving lessons, exams fees and more I can't even think about." Totally agree with this too.
One major cost I can see swingofthings has forgotten (totally understandable not to remember it all off top of ones head) is transport - especially the 18 year old as they will be paying adult fares now but if they're not earning and still in non advanced education this can be a real problem.
"Uniform expenditure varies by year. This year amounted to a jumper! " do you really think uniform is only bought for start of school year? Certainly my dd outgrew most by the Feb half term!
"Plus shoes - of course" - again VERY expensive - especially if the school are strict about the type of shoe.
"I just think £210 plus child benefit seems a lot as a reflection of those things" do you have dc yourself op? You seem very unaware of the costs of children! It's really not very much at all!
All of the following need to be taken into account (and as per swingofthings quite possibly more! As its easy to forget and I'm out of the mindset of having a school aged child now)
So:
Rent - larger home to accommodate children = higher rent
Council tax - bigger house = higher rate council tax usually
Gas, electric and water - teens use a LOT of hot water and electricity!
Internet - no longer a luxury but really essential for household admin and education
Food/groceries - teens have bottomless stomachs! They need more calories than a grown adult as growth is at a peak at this age. Metabolism higher too. Then there's cleaning products and toiletries too.
Clothes - not just uniform but out of school clothes, shoes, coats etc
Leisure and recreation - it's an expensive age for this. Yes it's possible for them to do free/cheap things but it's not ideal
Furniture and soft furnishings - wear and tear, growth meaning items need to be upgraded/replaced - my dd took a hell of a stretch around 16 meaning she needed to move from a small single bed to a double, essential so she could sleep well. Bedding and towels need replacing regularly and teens really get through the towels in my experience so you need to have plenty.
Education - not just uniform but books and equipment too, especially with so many schools suffering badly from cuts. Stationery alone can be a considerable cost especially during exam years when they need to be making a lot of notes.
So do you REALLY think £48 a week for TWO children is too much? Honestly?
How much are YOUR living costs? Even groceries alone? Bet they're more than £24 a week!