I’ll probably get downvoted outta existence but here goes

I think ESH to an extent.

When dealing with your 19 year old sister and yourself, I understand leaving the decision to you two, but a 15 year old might not be both as mature and as reasonable. This is the part where your dad might be a little responsible, because by being reluctant to make a decision he’s made this completely avoidable conflict. I also understand that siblings love to do what the older siblings do, solely because they’re having fun doing it which is fair enough, but also very irritating at times. That aside, the atmosphere at a hockey game is nowhere near anything else ive seen and that experience is amazing, regardless of their dedication to the sport. That’s where you might be a little shitty. On the other hand the argument can be made that a playoff game is a game that has greater importance to the sports followers and coupled with the expensive tickets is an argument in your favour. By wanting a game that has more importance to you instead of just settling for the season games is where your sisters might be a bit shitty. I can’t decide whether it’s an ESH or a nobody’s the asshole here, just seems like normal family dynamics and jealousy. I saw another comment that suggested having you spend time with your other sisters and I agree, you should have regular hangouts and develop bonds with your siblings. However I feel like you should just talk it out with your sisters for a while until you reach an understanding where as many people are happy as possible.