I'm not too bothered by long hair but I hate it when it looks stringy and ratty. Even on little girls, I just feel an itch to give it a good cut. Long hair looks amazing if it's cut well and in good condition. Personally, I can't cope with my hair past shoulder length because it's so thick.....if I was a a Duchess with staff though I'd probably grow it (and have someone wash and blow dry it every morning, bliss!).
Not that what I think matters, but I'd say Meghan's hair as it is now is too long as it swamps her tiny frame. I agree with posters who say she suits a bun, she has such a pretty face and profile that having her hair back really suits her. I also agree that Kate suits more depth in hair colour, and no one does an up-do like she does, I love the intricate buns etc she has with the pleats and tucks. It must be one of the best bits of being royal, alongside the gowns and jewels says she in jeans and wedding ring