[kristiandupont]

>What's the point anyway?

Well it would be easier for learners to pick up for one, but I actually think the system is annoying, even as a native speaker. When someone tells me a phone number or similar, I will often ask them to read out the digits one by one because writing down the numbers can be difficult with the alternating order.

[lordnacho]

That's another weird thing. You CAN read out a number as 8 individual digits, but most Danes will give you 4 two-digit numbers. It's almost a shibboleth, like that movie where the non-native German speaker uses his pointing finger instead of his thumb to count "one".

[Bromskloss]

I had a teacher, who, when enumerating, say, three points in his address of the class, used his thumb all three times.