Let's start with drinking. There are indeed many fair-weather friends now, and most of them are not intimate friends, so drinking is just for fun, but you should know that drinking is harmful to your health. Many people will do something incomprehensible after drinking. Drinking is a mistake.
The second thing is eating meat. I think modern people really basically want to eat meat, and vegetarians can hardly see it. Besides, I think meat is really delicious to the people I like, but it may not be worth mentioning to the people I don't like. See his personal preference. He just thinks that eating meat is unfair to those cute little animals and that eating meat is cruel. That's why we specifically resisted.
The last one is this cigarette. It is true that people are under great pressure now, so smoking may be the first way to relieve stress, but it is also more worrying. Although I don't like smoking, I think many boys want to smoke, which has almost become a necessity in social circles. Smoking is harmful to health, and non-smokers are very insightful.
Finally, I want to give you a summary. Hitler didn't like drinking, smoking or eating meat. He can be called an extremely self-disciplined person.