While there's always demand for more bandwidth, IPv6 isn't really something that people care about in the larger scheme of things. Many ISP's and carriers solved the IPv4 congestion issue with CGNAT and that'll keep things going until we run completely out of IPv4 addresses.
Once that happens, there will be government action. Not before.
Meanwhile the top agencies distributing IPv4 blocks have ran out of them a decade ago.
Recently it was the time for a lower level agency to run out - for Europe.
There's a lot of things that people don't care about until it's too late. Governments are supposed to be able to plan decades in advance. And they do, for things like digital TV. (And I already gave an example of governments acting to push IPv6.)
CGNAT is causing issues in that some protocols simply don't work properly through them. IPv6 also allows for simpler networking, since you don't have to add the extra abstraction layer that is NAT.
Politicians in Europe expects the market to take care of it. Businesses won't hurt their profit margins unless they have to (because IPv6 does mean additional costs).
We need something that increases consumer demand for IPv6 if we wantbthis to be dealt with now.
Once that happens, there will be government action. Not before.