There is marginal returns in training the ability to use a specific tool. If you have as technologically illiterate as my granny, yes, learning how to use the internet and send a private message would make a huge difference to your life, but given that the majority population, at least in places where internet access is universal, already have a lot of experience using various internet tools, whether it is web pages, mobile apps or games, and the interface of these AI tools, at least in the current world, are not that different from another app or another website. Spending more time on FB at this point is unlikely to bring you any advantage, unless you are a business owner trying to use FB to market your product, but then, you are learning digital marketing, not using FB. Your skills of making good videos and graphics on your FB page will transcend through platforms. Even if people decide to stop using FB and use Tiktok only, the skills you gain from making those videos are transferable.

The problem with using AI tools is that, there is no universal skill of making them doing what you want. If you master the art of making chatbot A respond to what you want, it is very unlikely that chatbot B will do the same when you apply the same techniques. It is because different AI tools might have very different underlying architectures and trained on different datasets, but you don't have access to these information, so you will never know when to apply pre-existing assumptions about AI tools.

I think most of these tools will be easy to use, the easier to use it is, the more marketable it is. Facebook is not hard to use for most people, even our granny started using it, it is the mentality of not wanting to use it, the idea of "the good old days" being better.

If what you describe is true, the only way to stay relevant is to learn how to build these tools. Unfortunately the most advanced modern AI are almost exclusively based on large datasets that only certain privileged people and big organisations with great data harvesting potential have access to, so most people won't get the chance to build these AIs, even if they have the skills to (very bold assumption).