The size of Maoris is due in part to the genetics as Polynesians. Obesity is a huge problem in western countries though so good-on-ya' bringing up the subject! I visiting England and America in the last few years I was once again saddened by the amount of obesity I saw - plague proportions! Add to Maori genes western diets and yeah they get big but Kiwis are very, big mesomorphic people by nature. Being big in some Polynesian cultures is a sign of wealth/status, happiness, and connection. As for mobs, depends where you go. I have always found Kiwis to be very warm and kind people especially Maoris covered in family and tribal tattoos. As for "crims" I'd much rather walk around in NZ than any US city or town. Auckland has some really rough neighbourhoods while Queenstown and Christchurch are two examples of beautiful peaceful places. As to their houses, they are of an 'Englishy' styles and traditions with similar social norms and laws around land plot sizes etc coming into play - although now the building scene is becoming far more contemporary with some awesome builders and homes being built all over NZ (my second cousin is one of these nouveau builders ☺️). The older guard in NZ has begun to wain and with people like Jacinta in the halls of power Kiwis are even more-so very forward, practical,. pragmatic, realistic, adventurous, authentic people. Remember for many months of the year it's a very cold windy country so houses have been built to purpose and what was the budget for most Kiwis in the past. I find English houses terrible to live n move around in coming from open plan large room and floor plan space living, but for their weather homes are practical.