Pole dancing actually requires an incredible level of athleticism, and as such, is a pretty fun way to get in shape. Some people who install a stripper pole in their home will no doubt be the kind of people you describe, but that's not the only kind of person who might install a pole at home.

I know a couple of people who do pole dancing as a sport and have a pole installed in their home. They're both people who seem like archetypical examples of people who have their shit together. For these people, installing a pole in their home is analogous to a weightlifter purchasing a squat rack so they can lift at home — basically just a way to practice without having to travel.

I'm not trying to suggest that your caution is unwarranted — if I were the person in the OP, I would feel pretty anxious about knocking on their door about the problem, because it'd feel like a bit of a coin-flip: are they going to be the kind of person who has a full fledged liquor bar in their kitchen, or someone who engages pole-sport as a productive way to stay fit? Because one of those people would likely be much less easy to work through issues with.

I guess my goal in writing this is to convince you that there are at least some people who install a pole in their home who are nothing like the archetype you're envisioning. I'm not suggesting that they are the majority — I have no idea what the relative prevalence of these different archetypes are. However, they do exist.