Not in that age group but I can't imagine not having cc on. I was hooked when watching anime and foreign movies but even with english movies they only have an upside. You don't have to guess what word they said or how someone's name is spelled. Loud scenes where you can barely hear them is one but also when you have characters that have accents or switch to a different language it helps (you don't get distracted by the sudden need to read cc).

You have to get used to it but it only takes a few tries.