Yes, these two girls are dressed alike on this particular day. Do you notice the height difference? It's pretty substantial. They are not twins. When out and about we get asked at least twice if the girls are twins, no matter how they are dressed.
And these three together, are definitely NOT triplets. Again, see the height difference. I know they all look alike, because duh, they are siblings.
I agree Eligh, they need to get it right. The two little ones, yes, they are the twins. There are plenty of boy/girl twins in this world, don't assume that just because there are two girls they are the twins.
People don't you know that assuming makes YOU look like an ass, NOT me?!