Ignorant, but you're willing to learn yes?
Hi,I'm 20 years old and I would like to enter the media field. I heard the market in this field is dying because now everyone has a smart phone and that replaces the camera.
Is that true?
No, that's untrue. The market is dying because of basic business and technology realities; less people need a professional photographer to get the results that THEY want. it's that simple. People don't spend money on a Lantern and oil if they can buy a $2 LED flashlight that lasts for 5 years. You might like the quality of light that a Lantern provides, but most people couldn't care less about that. Same with cell phone cameras- people are satisfied with them because that's what they want and need, not more than that. It's that simple.
You don't need milk delivered to your house do you? Probably not, because you (1) probably have access to a grocery store (2) you have a refrigerator in your home (3) the cost of picking up a gallon of milk at the store and taking it home is relatively cheap and very reliable since everyone in the developed nations has relatively easy access to milk.
Can someone make a living of photography if you start as an amateur?
Any time you use the word "Can" it means is it possible. So yet, it's possible that a monkey can make a living with a camera. It's possible to have a sub-standard GPA and get admitted to one of the best universities in the world (especially if you developed a cure for cancer AND depression in your basement) ... but it isn't likely is it?
The answer to the question that you should be asking (whether or not it's LIKELY one can make a living as an amateur") is *NO*
Can you pay the rent with the money?
Read the above answer.
I've have seen some information on the internet that a photographer at the wedding or other events can get 1000-4000 €. Is that real or fake?
Unless you know how people reporting pay on the internet came up with their figures (including sites like indeed.com and others) don't take them too serious. They misrepresent income all the time and foolish people think that they're accurate all the time when it fact they are not... and in many cases not even close.
** Your problem is that you're a bit immature / ignorant for your age when it comes to business and finance. My advice to you is forget about photography (and anything else for that matter, unless it's joining the circus in order to save some money for college) and start reading about finance and marketing until you educate yourself because right now you're very very far behind.. so far that you don't realize that photography is almost entirely about business if you want to get paid well.
Getting paid well is more about business and less about the quality of your work or the quality of your food if you're in the food business, although it (quality) also matters.
Example: There are cameras set up on some roller coasters that take horrible poor quality photos the are purchased by the thousands at premium prices.
Example 2: McDonald's Makes far more money than the highest quality restaurants.
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If you want to make a lot of money in photography, it's more about *word-of-mouth, *great marketing (if applicable), your *target market, and *how you run your business... lastly, it's about your photography.
My strong recommendation to you (and others with your question) is to go to college (or self study) and learn about
business,
finance,
marketing, and basically how the world works etc... and THEN worry about photography. At this juncture, photography should be your least concern
Best of luck to you!