I'm in Slovakia. The IPv6 adoption is below 1% and the ISPs don't plan IPv6 rollout because "We have enough IPv4 addresses.". Nowhere I ever had native IPv6 available on home connection, it is option only to business clients.
Out of the tree biggest ISPs in Slovakia, only T-Com doesn't support IPv6, unlike it's German parent. UPC (Liberty Global) switched all their residential customers with new enough CPE to DS-Lite years ago, and Orange also had a flag day, since then all new customers are also on DS-Lite (they allow getting public IPv4 for nice 99 EUR one-time fee, static one is additional 8 EUR/month).
