Why you gotta be so rude?

I have 3 kids - 9, 5, and almost 2 years old. Pag lumalabas kami I usually ask my 2 eldest kids to choose kung anong gusto nila - sa food or sa things they need. Yesterday we went to a bookstore to buy their supplies for this school year. My 5 year old was having a hard time choosing her notebook. I told her na bilisan na kasi may naghihintay na. Then suddenly nagsalita yung girl na "Ang tagal naman!" Girl, why you gotta be so rude? Pwede ka naman magsabi if you are in a hurry 'di ba? Sensitive lang ba ko mga mommies? Kasi ako kung kailangan ko na talaga mauna nagpapaalam naman ako ng maayos. I know we cannot expect the same thing sa ibang tao, pero at least huwag maging rude na magpaparinig pa. Kayo po ba? Ano po ang masasabi niyo? #backtoschool #dontberude #respectbegetsrespect #respect #momsonmoms