My daughter was born in December. She has always been envious of kids who get to have summer beach/pool parties. This year, I decided that I was going to make her wish come true. I found a swim school with an indoor pool that hosts birthday parties. The package for up to 20 kids in the pool was $475. (Or so I thought) I added six pizzas to that, so we are at $535. Add a cake, party favors, decorations, etc., and I'm looking at around $700 for this party.

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Yesterday, while I was setting up the specifics of the party with the coordinator, she mentioned (now, three days before the party) that the 20 "kids" included in the pool actually applies to everyone in the pool, not just kids. She said that if any adults go swimming at the party - over that 20 person limit that I paid for, there will be a charge of $10 per person over the 20 people. We have 19 kids coming - I came in just under the 20 people. So now, if ten adults decide they are going to swim with their kids, that's $100 out of my pocket in addition to the $700 I am already spending.

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I didn't sign up for that. This party is for the kids. I don't mind paying if aunt/uncle/grandparent of my daughter wants to swim, but am I expected to foot the bill for any random parent that decides they want to take a dip?

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I want to send out a notice to all parents that responded to my Evite that with some party notes.  (like "wear comfortable clothes, it will be 90 degrees in the pool area") Listed among those notes will be something like: "The swim school has notified me that adults may swim with their children for an additional cost of $10 per guest." I'm not trying to sound cheap here, but AITA if I don't want to pay extra for adults to swim at my daughters birthday party?

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My family is divided. Some think I should suck it up and pay for whoever wants to swim. Some think this party is for the kids, and adults are on their own - I should send a polite note. My dad says I should print out a sign and hang it on a wall somewhere that says explains that they need to pay for themselves.

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I haven't sent the note out yet. I want to gauge the reaction I get here before I do anything.

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WIBTA??

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Edit: Here is the note I am thinking of sending:

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Hi All,

Just a few notes regarding \[Daughter's Name\] Birthday party this \[Date\].

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1. The room housing the pool is kept at a temperate of 90 degrees. Dress appropriately so you won't be too warm.

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2. Life vests, rafts, pool noodles, paddle boards, etc. are all provided.

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3. There will be a lifeguard on staff during the entirety of the party.

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4. The pool depth is four feet all the way around.

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5. Children under three years old must be accompanied by an adult.

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6. The Swim School has informed me that adults are welcome to swim as well, for a charge of $10 per adult. You can pay at the front desk when you arrive if you choose to swim with your child. They will not allow more than 30 people in the pool at any one time.

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Edit #2: UPDATE posted here: [https://www.reddit.com/r/AmItheAsshole/comments/a325w2/update\_wibta\_for\_asking\_adults\_to\_pay\_for/](https://www.reddit.com/r/AmItheAsshole/comments/a325w2/update_wibta_for_asking_adults_to_pay_for/)

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