I like the 60mph limit. I'm coming from a rural background where it's unlikely anyone would set the speed limit for each individual road correctly. National speed limit is saying "you can go up to 60mph, this isn't necessarily the correct speed for the road"

There are quite a few rural roads where it is a perfectly reasonable speed (straight, wide, 2 lane), and plenty of roads where you physically couldn't get your car past 40mph without fecking it into a hedge. It's a limit, not a maximum, and it's that way so we can trust people's judgement based on the current conditions of a road, which is (at least in a rural context) almost certainly more accurate than what a council would set.