Here is another perspective on the benefits of dancing - it may delay dementia
https://blogs.biomedcentral.com/bmcseriesblog/2016/04/04/keep-dancing-turns-good-brain/
"In 2003, research published in the New England Journal of Medicine found that dancing can reduce the onset of dementia. The 21-year study of senior citizens, aged 75 and older, was led by the Albert Einstein College of Medicine in New York City, funded by the National Institute on Aging. They measured each participant’s mental alertness as a means of monitoring the rates of dementia, including Alzheimer’s disease.
The researchers studied a range of cognitive and physical activities, such as reading; writing; doing crossword puzzles; playing cards; playing musical instruments; dancing; walking; tennis; swimming and golf. Surprisingly, dance was the one activity that was good for the mind, significantly reducing dementia risk. Regular dancing reduced the risk of dementia by 76%, twice as much as reading. Doing crossword puzzles at least four days a week reduced the risk by 47%, while cycling and swimming offered no benefit at all.
dance may still be seen as recreational while its clinical value is overlooked
But, not all forms of dancing offer the same cognitive benefits. Working on memorized sequences, might improve your performance, however it doesn’t create new neural pathways. The theory goes that the more pathways your brain has the easier it can access stored information and the better your memory."