I understood your question to be around the potentially commonly held belief (read: what I've heard) that city folk are generally brought up with less responsibility bestowed upon them than rural folks (and the scale that exists between those two extremes).

Maybe not entirely "responsibility bestowed" but also the behavioural differences (distractions available, ability to deal with boredom) that come with the density difference of both things and people and space.

Edit: replaced the word "fact" for a more appropriate description of the truthiness of the situation.