The American Academy of Dermatology has this to say about bathing for ages 6-12:
"If your child is in this age group, taking a daily bath is fine. However, children in this age group may not need a daily bath. Children aged 6 to 11 need a bath:"
At least once or twice a week
When they get dirty, such as playing in the mud
After being in a pool, lake, ocean, or other body of water
When they get sweaty or have body odor
As often as directed by a dermatologist if getting treated for a skin disease"
Medical professionals say daily or weekly baths are fine for 6 years-olds. As long as her parenting choices fall within guidelines, I wouldn't raise a stink about this stinky issue. Now, you do say they arrived "sweaty". That falls outside guidelines. If this happened twice in a row, it's worth raising. I'd probably try casually at the next handoff when you've cooled down. "I noticed Johnny arrived all sweaty. Is he refusing to bathe over there? Oh yeah? I agree, it's hard to get him in there sometimes. I had to bribe him with bath toys." You catch more flies with honey, but if that doesn't work, you can always escalate to more formal communication.
