Slightly off piste here, but a similar situation. My GD has lovely hair which is often floating about loose and in front of her eyes. Even when tied up, there are still wisps flying about in her field of vision, which I think bothers her. It drives me mad. I did tell my son and dil about the problems it caused me as a child (nervous tic, etc) but they still continue to let it happen. I grit my teeth and say nothing but if GD is at our house, I find a couple of clips and pin it back out of her eyes. It is SO difficult not to make a comment, but as others have said, she’s their child, not mine.