Not sure on courses but in my opinion you should never stop learning whether it's for a job, just something of interest, or learning more about yourself; so go for it! You never know what comes in handy, the whole "bigger toolbox never hurts".
As for AI I say no. You have seen probably first hand how people don't like talking to a computer when they have a problem so to code it so it's not annoying is going to take more work than it's worth I think. It could be generational and young people like 'say yes, say no" kind of interactions but when someone has a problem they want to explain it to a person, whether for sympathy or to get the details right. Hell, even the "help" websites that give a choice of answers and your problem doesn't fit into them ends with "did you find this helpful?" which is nothing. Frustrated people talking to a machine doesn't work, even talking to a human who reads off a script isn't a fix and when people get frustrated they decide if using something is worth the hassle. Case in point Ticketmaster: can't access their app on wi-fi! So to see/get my tickets I have to disconnect from home wi-fi just to get on my carrier to do it. If TM wasn't the only game in town I'd be off it already. And the answer to my problem of not accessing tickets I already paid for was found on a Tool reddit, not the TM site. There will be some stuff automated like ordering or checking an order status, was a payment made but making a "human machine more human" just seems like as low return thing for a business that has to have customer service, and shitty customer service is more damaging than none at all. Nothing like talking to a machine when your mortgage payment wasn't sent and the bank called you.
Having grown up with consumer, and some business, tech from its infancy through today I'm glad I'm naturally expiring within the next 50 years. I get the feeling people are into AI just to do it regardless of cost. Not even talking Westworld but simple "what do you do with people who are now unemployed because of tech" problems. Just let them starve? Some kind of UBI that no politician in the US wants to even hear about? Wave a magic wand and they become trained in something they haven't got the education for or even interest in? Back when NAFTA was a good thing for all (yep Rep and Dem) all those factory workers who lost their job were going to magically change to IT, presto! Oh but those jobs never came to "nowhere USA" or to people who weren't interested in tech or had the educational base to do it (making some generalizations here). Then IT went overseas so all those "call center jobs" that they were going to get went "poof"! Now Amazon is looking to replace their workers as is McDonalds and others are going to follow suit because employees are your biggest expense. What do those workers see as a future when they can't even provide for their family let alone buy a Tesla b/c everyone should be super eco friendly, which does cost money to get started in. Now the powers that be say "oh they'll go to green jobs!" Yep without a science or bio background they'll just land some job. So to paraphrase Jurassic Park "everyone was in such a rush to see if we can, nobody asked if we should" and tons of sci-fi has looked at this same issue; but it appears question hasn't been heard of. Rant over.