Yesterday, I highlighted one key a reason why robots will not be able to completely eliminate roles like doctors, etc. and that is lack of empathy.
Also, another key barrier that will remain the lack of a diverse set of innovators & development engineers in the space. AI designed today is strictly designed with a subset of the population; therefore, the larger consumer space will continue to see limitations with their own AI experiences. No matter how much you try, you can never replace female thinking & interpretation with male thinking & interpretation and vice versa. Therefore, there will always be something missing in AI for a larger part of the population.
The Future of the Professions, a book by father and son duo Richard and Daniel Susskind predicts radical change about the automated future of professions.