Shirts are more formal and more elegant than T-shirts.
T-shirts are not the right choice for a job interview, because they are considered too casual. Most men wear a suit, and a shirt with a tie for job interviews.
On the other hand, shirts are not really appropriate for doing physical work, such as gardening or works around the house. Most people would prefer wearing T-shirts for that purpose.
Shirts have buttons down the front, and they usually have a collar. They can have long or short sleeves; shirts with short sleeves are generally worn in the summer.
T-shirts are called T-shirts, because they are T-shaped. They have short sleeves most of the time and no buttons on them. They are simple and comfortable, which makes them very popular with young people.
They often have some words, drawings, or some pattern printed on them. You can even have photos of your children or your favourite rock star printed on a T-shirt.
