Anyone can dance even if they have physical conditions that limit their movement. Simply put some music on and get moving to begin with. Dance classes are staged in nearly every town and city in the western world. Many of them will offer free taster sessions to see how you get on with certain styles. Remember that most novices face a steep learning curve so you must not think that you cannot dance if you are starting out and making errors. It happens to everyone, including professional dancers so don't give up!