I'm not entirely sure but I think this is true (?) because rescue breathing should only be used if any of the following happened to the victim: drowning, drug overdose, collapse due to breathing problems, an unresponsiveness in infants or children, an unconsciousness adult that isn't breathing normally, and if they are having prolonged cardiac arrest.
Hope this helps! :)
I think the answer would be to tell her friends how much she likes being on the team because then they can know that it's something she likes to do and hopefully they'll respect that and not make fun of her.
Children typically develop empathy when they are around 5 - 6 years old.
I hope this helped!! : )