That's a big form. What will happen if people miss out some of the questions? Will they get a visit?
If you fill in your form online, you should be fine. I think the software will make sure you answer all the relevant questions (unless, of course, you accidentally forget to enter all the details of a family member, including their name).
If you return your questionnaire by post, they eventually make their way back to the enumerators who have to check them. If you post back your form and miss out a question, a census enumerator (it will be me if you live in a certain district in NE Scotland) will come knocking at your door to politely ask you to fill in the missing information.
