T-shirts are quite popular among older people here because they are comfortable and easy to wear. You can see many older adults wearing them, especially in the warmer parts of the country.

In my country, older people usually prefer wearing more traditional clothes like shirts or blouses. They think T-shirts are too casual and more suitable for younger people.

For older people, whether they wear T-shirts or not really depends on what they're doing. They might wear them for a walk or when they're just relaxing at home, but not for formal events.