Dance poles that are permanent are fixed to the ceiling supported by a beam located the roof and they are fixated to the floor by different brackets and bearings. The way poles are fixed to the ceiling and the floor varies by which pole brand is purchased. Portable poles are attached to a base or a portable stage and do not need to be attached to the ceiling. These poles can easily be removed, dismantled and transported into cases to different locations.
So if there are no classes in your area, then that might be the reason you have opted to learn how to teach yourself pole dancing at home. Another common reason people learn at home is because pole classes can be super expensive. A private class can be as high as $75 an hour and regular classes in California are as high as $260 a month (for 4 classes in a group). You can take pole dance classes at home for under $20 a month!
Pole dance in America has its roots in the "Little Egypt" traveling sideshows of the 1890s, which featured sensual "Kouta Kouta" or "Hoochie Coochie" belly dances, performed mostly by Ghawazi dancers making their first appearance in America. In an era where women dressed modestly in corsets, the dancers, dressed in short skirts and richly adorned in jewelry, caused quite a stir. During the 1920s, dancers introduced pole by sensually gyrating on the wooden tent poles to attract crowds.