We had plans today to go to a big indoor soft play centre and out for a meal afterwards for DP's DS' birthday. He turns 3 tomorrow and we only have him until 10am before he goes to his mum. I'm not feeling too well and when DP woke me up it was 1pm. He told me we're not going now as the DC's had drawn on the hall wall and floor with crayon and were punished by going to their room.
Is he being unreasonable? On one hand they are 3 and 3.6 and know it's naughty to draw on anything other than paper. On the other I feel that this is his birthday celebration and DP really should have been watching them, especially as the hall is right outside of the living room where DP was.
Should I leave him to decide or talk him into us going?