Totally agree, the amount of time and effort that goes into buying resources for Jace is astonishing, but it's all the same, colours, numbers 1-10, there's no progress further than this in 2+ years I don't think we have ever seen them buy anything educational for the older girls.
Emse is cocky I agree, but they have no outside influences, no one to 'knock' it out of her, if she was in a group of girls at school, she'd probably be a slightly nicer child, as she'd always meet a child who would not put up with her. And I always find kids always act differently with friends than they do at home. Esme, doesn't have that luxury, none of them do.
Someone pointed out they don't get punished, I believe the older girls do, it's been mentioned before they loose their phones when they answer back, I think it was the Ireland trip, it was mentioned Esme was forever loosing her phone for back chatting. Obviously Jace doesn't seem too get punished, Mila is forever being told off. Wasn't Jace also sending Isla to sit on the naughty step at one point?!