Why are people so rude these days ?

You act as if man's nature has somehow changed in the past 6000 years.

I think it's a domino effect. As time passed, laws became more relaxed. As laws relaxed, people felt they could speak their ming more. As people felt they could speak their mind more, they started not caring about politeness. As they started not caring about politeness, the younger generation saw how they acted. The younger generation then started copying the rudeness until it became almost universal. For those of us who were raised to be polite in all ways, it starts to feel like we should become more lax in our etiquette. The more lax we get, the more lax the next generation gets until 'rude' no longer has the same meaning.

Because they can be.

Because We can.
Im sure that back in the day people probably would have loved to do or say things that are considered rude, but they knew how to hold their tongue. It would be considered improper.
These days, people lack proper etiquette.

We live in a day and age where (at least in the USA) work is outdated.

When I was a child, I was responsible for the upkeep of the house. Both of my parents worked long hours so I was in charge of all of the house chores and my siblings. That gave my life purpose, and the better I did what I did, the happier I was for I was fulfilling my purpose.

When I got older, I was making my own doctor's appointments, doing my own legal paperwork (at about 15-16), got a full-time job, bought a car, moved out, went to college etc. without their help. I worked for everything I have now and honestly? I couldn't be happier, and my stuff isn't even that great.

But I look around me and see that the most negative/rude/miserable people are the ones that either had it really rough at home or the ones that had good handed to them and never really have major responsibilities as children. No responsibilities, no purpose, Mommy and Daddy handled it all for them, no pride, no way of knowing the key to happiness which is finding and fulfilling your purpose but if you don't know what it feels like to have a purpose to begin with then you won't even know why the f*** you're so miserable.

TL;DR
Who you are as a person reflects in your words and actions. If you constantly speak in negative ways, you're obviously not an entirely happy person or more miserable than you are happy (even I'm not happy 100% of the time and I'm usually described as upbeat), and that's the problem. Happy people don't act like that and it is becoming increasingly common for people not to grow up knowing what it is to have to work and have responsibilities and have pride in your work and have to overcome challenged and obstacles. Now it's all about making childhood "easier" and not preparing your children for the adult world. If you didn't grow up dealing with major challenges then you may never learn to count your blessings and every challenge seems HUGE.

TL;DR again, I pity da fool.

There have always been rude people- but now we have the internet.

32454: because you have too many options

Not every kind of people are rude.

Go figure. It has got severe to the point they don't even let me fucking talk. Draw your conclusions from that one.

Because they dont know my family:P or well the real reason may very well be that the way they have been raised.

Define rude?

it depends on who you mean and what they said.

some people ARE rude.
while others are just blunt.