The US has something like 80% of the world's IPv4 addresses, so they feel a lot less pressure to migrate.
I’ve worked for a company that was barely using its /16. I know several individuals, including myself, with personal /24s.
US is significantly above average in terms of adoption
I worked for a state government agency that had a public /16
I’ve worked for a company that was barely using its /16. I know several individuals, including myself, with personal /24s.