A few random points.

Access law is inside out, law should assume you can do anything unless told otherwise, not you can’t do anything unless told you can.

These “fragile” roads are 100s of years old and survived centuries of teams of horses pulling carts running on skinny wheels. The countryside is even older, and survived billions of years of weather.

The worst erosion a load of traffic going up a hill could create is a new combe. And we like combes!

Arcane historical rights should not make the bulk of the case for access. If it’s made of rocks feel free to drive your scud launcher up it. If it’s a peat bog containing the last mating pair of some newt, no-one is allowed on it. Time to tear up the map and do it right, and fairly.

There’s no point banning anything from a track that tractors still use.

Mountain bikes aren’t allowed everywhere because people agree it’s right, but because they can’t be stopped. If MTBs suddenly had number plates our world would crumble overnight.

All abandoned quarries should immediately become assumed multi-access. They’re already ‘ruined’, and are made of rocks!

Anyone with effective access to 150% of the official network (ie, all of it plus cheeky and trail centers) who moans about the presence of some who only ever used 5% needs psychiatric help.