Recently my son had a new year's party with all his friends (he's 16) they used the house whilst I was away visiting my parents, I trusted him with the house as he is a mature kid. However when I got home the next day I found that the house had been absolutely trashed, cups and dishes everywhere and the dog had been dyed yellow and pink! I've cleaned the house as much as I can but there are things like holes in the walls and the dining tables leg has been broken. I've since grounded my son taking all his devices away, and I won't be letting him have/go to any more parties especially not in my house. The damages to the wall and things are going to cost upwards of £2500 he is going to be getting a job and paying for all of it.
Is this a reasonable response?