Currently, less than 70% of the world population use the internet. Universal adaption may be inevitable, but it could take a few more decades. Less than 40% use Facebook at least once a month. Comparable user numbers for LLMs are a bit hard to come by, but I'd guess less than 25% overall, not counting cases where LLM output is shoehorned into another product without the user asking for it. The inevitable may take a long time to come to pass.

If you're currently a heavy LLM user, probably you'll continue for the time being. But that doesn't mean you'll inevitably end up doing everything by telling an LLM to do it for you. And it doesn't mean people who currently don't use LLMs at all will start doing so soon (some of them need internet access first), nor will monthly users who literally only use LLMs once a month inevitably convert to heavy users.