My DD1 tells everyone she is Romanian as she lived there until she was 3 (she is not, she is British). DD2 lived in Romania until she was 7 months and has lived in Belgium since then. She has no idea where she is from, thinks she might be Romanian, but fairly sure she is not Belgian.
They attend an international school.
Does their lack of sense of identity matter, and if so, how do I get them one?