family spending/kids influence survey

Hi forum staff,  it would have been useful if you'd said somewhere at the start of the survey that it's just for residents of Britain, because I filled it in up to the point where it asked for the area and city, and it wouldn't let me leave it blank and doesn't have an "I don't live in Britain" option. 

btw I'm not angry or anything, just feedback :) there's probably quite a few forum users who don't live in Britain.