Having flat feet doesn't necessarily mean that you have good balance. Usually when someone has flat feet they have strong feet but, when someone has a high arched foot, it usually means that they need to work on the strength in their feet. A good way to strengthen your feet would be with a "Thera-band"
The best shoes for flat feet are those without arches. Flats, sandals, and boots are good choices for flat feet.
The answer is yes, they are great for people with flat feet, I have a pair and they are so wonderful. I would go with the Asics Kayano 17, but if you have extremely flat feet get a insert as well.
having good balance
The reason why wide feet are a good adaptation for living in the desert is because you do not sink in to the sand as you would if you have thinner feet. Camels have wide feet that help them stay on top of the sand making travel easier and more efficient. The camel's feet are good for the desert because their feet are flat so they don't sink in the sand and that means they can move faster.
I do not see how it will stop you from being a good footballer.
New Balance. They give your feet good support.
New Balance are good shoes. They will be great for being on your feet all day.
It is harder to fall down.
Well it depends. Like if you have severe flat feet like me or very minor flat feet. Since i have severe flat feet my "foot" doctor has given me braces that aren't visible from the outside. But there is a way to check if you shoes are good or bad for you. You will need to take your shoe and hold the heel and place the toe part on a flat surface and push down on the shoe. If bends a lot it is not good but if it is stiff or a little bendy then i will be just fine. But if you are till not sure then just check with you doctor. Hoped That Helped! :)
Yes there is, I found a good store online which is called healthfeetstore.com and they have these kind of shoes.
your feet should be flat on the ground to create good posture
It depends more on if you like them or not. They will give your feet a nice look, but its more important for you to be comfortable.