Although she occasionally finds the childish behavior of her minions annoying when they work for her, she presents herself as a very considerate and caring person toward her allies.
The traits the word childish addresses are seen so often in adults that we should abolish this age-discriminatory word when it comes to criticising behavior associated with irresponsibility and irrational thinking.
That's okay. It's a bit more kind of childish, but it's still fine, like, I might say that to a, to a kid " bye bye" , but if you're saying it to an adult, the safest option would be " goodbye" or " bye" .