Question

Why do the food habits and dressing style of Indians differ?

Answer 1

climate and weather has great impact on our dressing style andfood habbits
like coastal areas eat fish more
they bear lungi
in northern hilly areas they eat goat and yalk more they r extremely depend on yalk for wool milk and meat

Answer 2

The food habits and dressing style of India differs from the others or we can say there's a major distinction between Indian Culture and Western Culture.

This is because they are diametrically opposite to one another. The cultures of the two have some of their own advantages and disadvantages. 

Indian culture is a combination of diversities in customs, rituals, traditions, language, and so on varying from region to region within the country being  one of the oldest and a combination of various cultures.