Bit OTT for a primary school formal...
I live 5 mins walk from the primary school in our village and have a landing site less than 100m away from the school in a mates paddock - which I use for pickup/dropoff when we are off somewhere North of the Thames (to save the family travelling with me to Redhill to get the chopper).
Now if they were off to some country manor for college/graduation formal then I would likely do it for my kids, but as my eldest is only 7 this year, I have at last 12 years before she leaves college.