Dear community🙋‍♀️, why do some people become so aggressive and bitter in life, is this due to our society?

I'm noticing more and more that some people are very aggressive and bitter, and it's not just affecting older people, but also children and young people!? Thank you in advance for your kind and honest answers! 🤝 Many greetings from Mausimauselchen. 👋

Why do fights happen so often in German clubs and not abroad like in Spain or France?

I've gone out partying in Germany just as often as in Spain and France, but I've never seen a fight in a club in Spain or France. If someone accidentally pushes someone, they apologize, but in Germany you're somehow attacked straight away (Cologne and Düsseldorf). What could be the reason for this?