I work in a pmld school and have 2 children myself both with ASD & ADHD. They often have a monotone voice and can occasionally speak using different accents but I would say actually when you listen to both of hers it’s not the typical “asd voice” it’s as you said youtube! Clearly lazy parenting as it’s easier/simpler to just give the kids a tablet to watch rather than entertain or educate them!The middle lad has an American accent too they used the excuse about Roman having one due to his autism (I know this is a thing) but they haven’t mentioned Carter having possible ASD so defo YouTube with that one