With systems such at chatGPT and google bard some people are doing 2 to 3 IT jobs.  Others are having issues finding jobs because tech industry is using generative AI systems to write code for all types of platforms and code for infrastructure as a cloud.   Other people immediately impacted are writers.

I can tell you who will not be impacted. Life-guards
Technology is taking over. Porn is preferred by many over real life relationships. I am old-school & desire human interaction it is necessary. I do not think people will stop playing, or providing because we need real life experiences. Human touch is a major factor.

If so I dont think there will be any significant impact.

I agree, AI and a sex doll will never replace the satisfaction and experience a highly rated provider brings to the table.  
A providers personality and sexiness' add something a machine will never do. Lower rated providers need to be aware
 " the machine may better than you  "  .   Plus the machine will probably improve every year .

the social aspect of the hobby is just as important as the physical part, and you will not get that from a robot or sex doll.   Many people who have mental illness in these times and do terrible things are those who are loners and lack interpersonal skills when in close proximity to others, especially of the opposite sex.