study in UK

Mom said I aunt’s children want to go to study in UK, but I do not quite agree with my cousin, aunt went to study in UK, because she felt she was only my cousin a daughter, if she would even away from her, then my aunt will be very lonely, I really do not understand why my aunt did think about it, because I think if a child wanted to study in UK, then as a parent is to be very happy fishes, so that I am not understand my aunt’s practice, the children would go to school time is not very long, but not always leave you saying, I really do not know my aunt is how to think.