Hygiene is about taking care of yourself, your personal space and even people around you. In my own house, cleanliness is not a joke. Its something that stays with you even as you grow up.

And the hand washing part you mentioned is a must , I don't understand why some people would just touch everything and still eat without washing their hands. Hand washing is a small thing but it still helps to avoid sickness. The part when you talked about bathing twice a day after work, i felt that lol. After the kind of sweat and dust from outside, its peace of mind to shower and feel fresh again.