Game Freak what the actual fuck are you even doing at this point
It's like they've never met real-life human beings
Emma's model is scaled to be the same height as the XY protags i.e. she is the same age as them and we already knew Serena and Calem were the oldest protags thus far.
Hilbert and Hilda are 16 in BW2 anyway and BW2 occurs the same time as XY so what's the problem?