Besides, this is more or less an ode to "common sense" which is in my experience actually not so common. And definitely there is some form of age group bias, i

Besides, this is more or less an ode to "common sense" which is in my experience actually not so common. And definitely there is some form of age group bias, if the large majority were students (first year or otherwise) the sample must be dominated by 20-25 years people. Maybe (or maybe not) a sample with more aged people (i.e. with more life experience) would have reached more than 59%.