Op aibu is the most vigourous and potentially upsetting for the op part of mn.
Sometimes more is obvious to outsiders than what you see and sometimes people are too far off the mark to be any help.
The school of hard knocks crowd are loving the idea of this 16 year old paying her way, getting into the the real world, bearing her share of monetary responsibility..
All well and good if the other child has too.
Why can't the other child work?
Uni is often seen as extension of childhood, they are gently eased into the big bad world via tons of support from the uni, student officers help with accmd etc. Tons of clubs, fun with friends, endless parties, student union events..
Dd at uni is being shielded from this nasty big bad world but supposedly the dc who doesn't like hard work is actually about to....
Start work? No extended study for her. No endless piss ups at uni.
Out of sight out of mind.
Sometimes far far more is at stake than one issue.
You will be teaching your 16 year old more than you realise if you go down this route. It could be the start of a schism that never recovers.
16 year old will see herself as the do er, the get out and get it, working from 16 (for pittance) out in this big awful world she's gotta get submerged in.... And yet she gets penalised not the one extending soft student life?
Because mum gets benefit for her? But she wasn't academic enough to go?
I cannot fathom how anyone sees this as fair.
Dd 16 in isolation yes, but simply not in comparison to dd at uni.