Only if she stays with him the whole time. It’s easy to lose them in the lazy River. Though legally I do believe she has to be 18. If anything happens you might be held responsible.
If you trust your daughter it will be fine. No one will question it at the park
Yes
As long as he has her complete attention
As a Mom of I wouldn't place that responsibility on my older child because the daughter is still a young adult who might want to just relax and have no responsibility while at the pool.
She's the big sister.
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