Of course they are doing it for the money, like any business owners they want to grow their business and drive traffic to their app. As I've said before most of the participants in this show are promoting their sex work and Channel4 seems to be allowing it. Also the more screen time for them the better, hence throwing themselves at long- haired creep.
I don't care enough to worry about their children, that's their issue if they cause them emotional damage. I also don't worry about the participants being riddled with STIs since their collaborations with other sex workers will require testing.The open house is probably a safer way of trying this out compared to a less stringent sex club or private sex party. Although it's simple really. the more partners you have, the more risks you have, whether swinging or monogamous online dating. (Also there are exposure risks via oral or anal sex without barrier protection. )
What I do worry about though is as this lifestyle becomes more normalised and easier to access, vulnerable women in particular are open to more abuse from partners who can bully them into this. Am sure Olivia etc won't come across (lol) couples like this as they are no doubt able to pick and choose when not on television anyway, and can afford to attend the best clubs or parties.
I just fear for younger women who already have to put up with choking, spitting, slapping, expectations of anal (more damaging to women) etc, all as a result of increased porn use by men. So they have to act like pornstars in the bedroom at home and now thanks to this, also fuck other randoms at the service station Travelodge or their partner will accuse them of being boring and vanilla. That is the emotional damage I worry about.