Is there any good way to cultivate the interests of the elderly?

In fact, it is good for the elderly to have a hobby. Some old people like to dance square dance, play mahjong and play Tai Chi. These hobbies are all very good. They can exercise and prevent aging, which is good for physical health and mental health. They can not only kill time, but also cultivate sentiment. When the elderly cultivate hobbies, they must pay attention to pleasing others and themselves. It is not difficult to see that the elderly often cause neighborhood conflicts or occupy other public places in order to dance square dance. When the elderly are happy, they should also be careful not to disturb others. This is the most "should". ?