Please tell me if it's ok to use the single rider line with a 9 year old. There will be 5 of us on our next trip 3 adults, DS 13 and DD 9. I was thinking we could take advantage of the single rider lines on Rock in Roller Coaster and Soar'n. Would you use the single rider line if say at least one adult in our party was before and one or two of our adults were behind my 9 year old?