Half the developers I know still don't use LSP (and they're not necessarily older devs), and even the full-time developers in my circle resist their bosses forcing Copilot or Claude down their throats and use in fact 0 AI. Living in France, i don't know a single developer using AI tools, except for drive-by pull-request submitters i have never met.
I understand the world is nuanced and there are different dynamics at play, and my circles are not statistically representative of the world at large. Likewise, please don't assume this literally world-eating fad (AI) is what "most of us" are doing just because that's all the cool kids talk about.
Your IDE either uses an LSP or has its own baked-in proprietary version of a LSP. Nobody, and I mean nobody, working on real projects is "raw dawgin" a text file.
Most modern IDE's support smart auto-complete, a form of AI assistance, and most people use that at a minimum. Further, most IDE's do support advanced AI assisted auto-complete via copilot, codex, Claude or a plethora of other options - and many (or most) use them to save time writing and refactoring predictable, repetitive portions of their code.
Not doing so is like forgoing wheels on your car because technically you can just slide it upon the ground.
The only people I've seen in the situation you've described are students at university learning their first language...
I write code exclusively in vim. Unless you want to pretend that ctags is a proprietary version of an LSP, I'm not using an LSP either. I work at a global tech company, and the codebase I work on powers the datacenter networks of most hyperscalers. So, very much a real project. And I'm not an outlier, probably half the engineers at my company are just raw dawgin it with either vim or emacs.
Your ai-powered friends and colleagues are not statistically representative. The world is nuanced, everyone is unique, and we're not sociologists running a long study about what "most of us" are doing.
> forgoing wheels on your car
Now you're being silly. Not using AI to program is more akin to not having a rocket engine on your car. Would it go faster? Sure. Would it be safer? Definitely not. Do some people enjoy it? Sure. Does anyone not using it miss it? No.
It's also very different because there's a qualitative change between metal woodworking tools and a laser cutter. The latter requires electricity and massive investments.