Minor fine goes unpaid because this month the electric bill is more important.
Leads to more fines.
Leads to license suspencion.
Leads to driving while license suspended.
Leads to license suspension.
Leads to driving while license suspended.
Leads to felony jail time.
Don't get me wrong, there are choices made at each stage of escalation, and often all that's needed is to show up to court, dressed in your sunday best and respectfully explain situation to the judge, and the chain can be broken, but being poor leads to a lot of suboptimal decisions that could make it difficult or impossible to deal with any of this until there is no choice, and a felony conviction often ends up as the escalation that can't be putoff any longer.
But for the sake of argument, let's say you shutter your car. You can spend a ton of time walking to, and waiting on, public buses, time you can't use to study for a degree, or be with your kids. Maybe you rely on a friend's car, but then you miss out on last-minute shift opportunities, and your friend's transport problems become your problems, too, so if they're sick, you miss a shift and risk getting fired.
You're so out-of-touch, I'm surprised you didn't just say "Let them Uber to work, then."
(Regardless of which nation, obviously.)