Taking DD to a party other DD is invited to?

[PSILoveWine]

So my youngest DD (7) is going to a party tomorrow at a trampoline park.
I have no childcare for my eldest DD (11) so she will have to come along with.
Wibu to take eldest DD with me and pay for her myself to join in? Or should I make her sit in the cafe with me?

Op, my ds had his birthday party at a trampoline park in the summer. Lots of brothers and sisters came along to jump. Parents just paid separately for them. Was no issue

Okay so party was today and I did take older DD.
I had hoped to go for a walk with her to a cafe once I dropped younger one off but the weather was so bad and both DD's where soaked already (I don't drive and it was 5 miles from home) I decided to stay in the cafe.
The look on older DD's face though had me heading to the reception to pay for a ticket, it wasn't an exclusive party only event it was filled with the public. She loved it so much that I let her go trampolining. Obviously I didn't let her near the party table or take any snacks or party bags, I paid for snacks myself.

YABU. Your elder dayghter was NOT invited. It isn't for the other parents to be having to keep an eye on her too. Or provide food for her if there is food being provided.

I’m not sure how anyone can say this is being unreasonable. If the venue is open to the public while the party is happening then why on earth should the older dd not be able to use the facilities as a member of the public?

@MakeAHouseAHome
I would never expect anyone to do that
Like I said earlier I sat far away from the party with eldest Dd and paid for her entry and snacks myself. I don't drive, the weather is terrible floods n all.

Don't worry OP YANBU it seems pp didn't even read your posts. I understand not driving is a pain meaning you have less options.

Glad it worked out.

PSILoveWine I didn't see the post you made just before mine. What you did sounded fair if you also continued to supervise her and not expect the parents of the child whose party it was to supervise her or include her.