Ballroom dancing used to be extremely popular in the 18th and 19th Centuries, but it has steadily been dropping in popularity for years as balls are less and less common except for a very few and between occasions (such as debutante balls which are still celebrated in Texas).
However, even if you have no opportunities to go to balls you can still benefit from learning ballroom dances: it is popular at weddings, and you might enjoy the extra coordination and flexibility you can learn through it (not to mention, you will make many new friends in your classes !).
Ballroom dance lessons are offered by most schools, with some “beginners courses” that teach you the basics of every dance and classes that deal with particular styles such as cha cha cha, salsa, bachata or even waltz. If you want to give it a try, Googling “dance school near me” is all you need!