But that's not what it shows. It just shows that people of all ages give similar answers to a set of questions designed specifically to have only one answer.

Similarly, if I gave a quiz with the question "I don't think it's right to run over kittens with my car. Strongly Agree ... Strongly Disagree", then gave that quiz to a broad spectrum of people across all age groups, you'd suddenly find that the overwhelming majority of them were all "cat people".

But if you simply asked whether they liked cats better or dogs better, you'd get a more accurate and less skewed view on the situation.