DSD has swimming lessons every weekend partly because it's something she enjoys and means she gets to spend time with other DC her age and partly because swimming is a useful life skill. They cost a fair amount of money and it's DP who takes her, never her mum due to when they fall. However every time DSD has a bit of a strop her mum tells her she can't go swimming. This morning DSD was tired and grumpy and got banned from swimming again. It winds DP up no end but when he's literally told on the doorstep he can't say anything and just has to accept it as he won't have DSD playing them off against each other. AIBU / is DP BU to think this is unfair and there are so many other punishments she could use - or you know, she could try talking to her tired child. Thing is DSD was tired and grumpy this morning but as soon as DP had a proper chat with her she was okay. I could completely understand if she'd done something quite serious but not when it's just simple childlike tiredness. She's only 4.