Narrow lanes and poor roads are a massive problem in Britain. Here in the countryside the roads still follow the old medieval layouts, they've just put a layer of tarmac on top.
Last summer after spending 3 weeks in the Netherlands, driving hundreds of miles on country roads with 80kph limits, perfectly smooth tarmac, separate cycle lanes, no tractors allowed, long and straight with excellent sightlines, well signposted, proper traffic signal phases, or on the top notch modern safe and fast motorway network that actually covers most of the country, mile long entry/exit lanes instead of having to dive for gaps on slip lanes.
Coming home up the A68 was the most terrifying place I've ever driven, 60mph limit with 90 degree blind bends, humps and dips, potholes etc, all shared with cyclists. Driving on roads designed for the horse and cart.
The Dutch are clearly miles ahead in all aspects of road design, not just superior cycle lanes; driving along the A2 from Amsterdam to Maastricht to Liege in Belgium as soon as you cross the border it feels like going into a 3rd world country.