Almost all cars here have heavily tinted windows and windshields... especially Kidnappers' vans...
If windows are rolled down, the Police can at least see inside...
In the provinces, the government has it's hands full... the New Peoples Army, Bandits, Kidnappers, Carnappers, Smugglers, Warlords, etc. ... no time for helmet laws there.....
It is interesting that over here pretty much everything is completely the opposite.
Speed limit is 50 km/h in the city center.
Windows are not allowed to be tinted, especially not front and front side, the law allows for just a few percent tinting while the rear and rear side windows may be tinted a bit more,don't know how much exactly. But nobody does that except ricer-kiddies. The law is not geared towards enabling look from outside to inside, but vice versa, law maker is worried about lowered driver's ability to see outside if the windows are too much tinted.
Helmets are mandatory.
There is no window rolling down law.
Also many newer cars have auto-door-lock with timer or lock being activated above certain speed. For example, in my car locks go down above 40 km/h.
Finally, in Europe, if there is elevated crime levels, it is usually in the big cities, especially in the suburbs. Villages, or provinces as you call them, have generally much LOWER crime rates than cities.
Everything is upside down, either here or over there.