Why I'm playing LFS? Good question.
I've got a bunch of answers. One of them being since I'm stuck with a POS computer (until I get a better one), and it's the only sim I can really run, and even by that 11 cars on track is pushing it.
But also because it was one of the first 'real' sims I got to play on PC besides what few other racers I've tried, I knew it's keyboard friendly (sorta), but a reason why I even try now, partially to still practice some scenarios with real life driving.
Sure I've got a license and I've been at it for a long while, I still practice and I still try to find ways to do any number of things better, be it mundane parking or attempting to actually perfect parallel parking.
I used it to practice what I could in game when I could not in RL, and it may have been partially responsible for me passing the test.
But also because I want to at least understand actual car setup with at least ONE driving sim even though there's clear differences in physics between games like Assetto Corsa, Project Cars, Richard Burns Rally, iRacing.com, and yes I'll even include Forza and Gran Turismo.
I want to include DiRT Rally as well but I've not spent enough time to really say, and my little time was very limited (including driving a Metro 6R4 for the first time, at Monte Carlo, at night, with snow. I don't think there were any driver aids and years of LFS and RBR had me learn how to do without them anyway).
But to be on topic, right now I'm trying to at least have the delusion that I'm quasi-comptient with racing, and I've been trying to make a 'minimal' goal of being as fast as the AI on Pro on ANY circuit with the RWD GTR cars.
That goal has been a long painful journey far as not just learning how to go fast, be consistent, put the least amount of wear on tires, learn how to make up speed lost in some sections, learn how to pass cleanly and aggressively, and so forth, but also actually learning car setup inside and out.
I've kept quiet about that to be honest because, while not here, I've had too many cases of people being condescending towards me with enough things that I resorted to simply learning and figuring out some things on my own.
So I've been looking thru the manual, but also testing my setups and figuring out for myself what works and what does not for me.
I'm aware that for all of LFS's depth, it's not perfect and has some issues. I'm aware some updates have been, a long time in the making including a VW that should have came over a decade ago.
I still stick around because I want to get good with something.
There's more but, I think I've ranted enough as it stands.