Based on the context and the answer, generate a question. 

Context: My friend Rhonda came with 3 of her 4 kids and spent the weekend . We had a good time as usual . You would have never guessed there were 8 kids in the house , lol . We took some cute pictures of them swimming in the neighbors pool .

Answer:

Her oldest child is probably old enough to stay home alone , like high school age .



Why did n't Ronda bring all of her kids with her ?