Yes of course vegitarians can wear cotten. Cotten comes from a plant. Since vegitarians eat only plants and not animals then its okay. There is no reason that you shouldn't be able to.
Cotton does wear out after prolonged use. After wearing cotton clothing for a decent amount of time, the cotton begins to wear out. This may lead to wholes or fraying.
Yes the Greek's did wear cotton
I'm not sure if you can wear cotton shirts, but you can wear a tank top with shorts
People wear cotton in hot climates because the cotton is an absorbing material. In hot climates people sweat a lot and the cotton absorbs that.
It is NOT suitable for vegetarians. Vegetarians will not eat or wear ANYTHING if the animal has to be killed for the product. Gelatine comes from the skin and bones of an animal.
It is cool to wear
Cotton is bad to wear in water and in cold weather because it holds in moisture. This makes it good for summer wear.
yes, you wear cotton to stay warm.
always wear cotton
People wear cotton clothes for sport because they are lightweight, cool and absorb perspiration.
Cotton has a property that is pretty smooth, even when it is first grown. It could also be that the cotton you wear is very high quality cotton from brand name manufacturers. It is different for every person, but cotton's properties have a very good feel to your skin. Other than that there isn't any other reason why cotton might feel so good to wear.
As far as plants, the most common is Cotton, which is usually blended with artificial Polyester.