How would ordinary people benefit from subscriptions to ChatGPT et alia?
Setting aside industry and commerce, for which the potential benefits of 'AI' are highly variable, how might the 'consumer on the street' improve their quality of life by communing with ChatGPT in their homes or via mobile devices when out and about?
That question is left for other people to discuss. An ancillary matter to consider is how, what mostly will be simple or trivial demands on 'AI', would require people to buy-into commercial offerings.
Almost incomprehensible sums of money are poured into data centres stuffed with high-end 'chips', these generating sufficient heat to grow tons of tomatoes, and meanwhile draining freshwater courses. It must not be assumed that such concentrations of computational power guarantee deep or helpful insights to people taking out basic subscriptions. In essence, most people will be consuming a tiny slice of a collective utility; no specific, and protected share, will be allocated to each ordinary user; that works out as renting the equivalent of a basic present day Nvidia card or its like.
People will be connected to one of many multitasking behemoths which, when under routine demand, can offer only a tiny slice of the much-hyped abundance of 'knowledge' and 'intelligence'. A currently only moderately high-end personal device can privately run one of many 'AI' variants freely available from the Internet. Additionally, the variants shall be available from across the globe, China being a major player. Moreover, personal computing devices continue to become more powerful and at lessening price.
Another possibility is for personal computing devices to ship with a local 'AI', just as many now offer no choice about having MS Windows or Android. The local 'AI' could be designed to contact a larger, remote one when 'it' judges a need to consult a bigger database. Even so, unless OpenAI, and its partners, succeed in locking down devices similarly to preinstalled MS Windows and Google's proprietary version of Android, there will be immense competition: don't forget China and BRICS.