Fingers crossed, touch wood, rabbit's foot packed.
Yeah, there's that. But really, if you wanted something you could fix with a stick, even a bicycle is too complex. If some old engine or tranny throws a piston ring or a cog, or the the oil pump dies, or the axle breaks, you won't be going anywhere anyway.
Most EFI engines has a limp home setting if everything fails. Turbos? Yeah, on a diesel, it's not problem at all.
LEDs failing? They are much less likely to, other than strong impacts. If they fail due to this, a lamp fitting for an old-school one will also be dead. You don't have less springs and shocks on a solid axle vehicle either. So they'd be equally crappola to drive home from where they broke.
Corrosion of the electric wiring and therefore getting faults? I'll take the new one, thanks. It is more likely to have been done with crimping and not soldering, and more likely to have up-to-date plugs and crimps.
If, say, the weird combo rear mirror/display gets broken, it doesn't affect anything at all. If the various cameras malfunction? Well, then we're back to driving like in the old one.
If the traction control stops working? Well, you then have a car without traction control.
If the tranny blows: Again, I'd rather have this new automatic transmission than something 40 years build with subpar metals. And, even though people think they can shift better in offroad situations, the reality is that they can't. They can't even shift better on a flat road surface than a modern automatic transmission.
Even Unimogs these days have plenty of ECUs and auto transmissions. There's an electronic "manual" on them to appease the old guard.
A lot of it comes down to people thinking that they can just McGyver something out in the wilderness if they have an old car. But they don't realise that even the mechanics of a new car is much better than the mechanics in the old.