Europe, Japan, Canada, Isreal, Korea, US, Singapore are some major countries where bitcoin has legal status. There are many other countries like India, Rusia those are preparing a draft for bitcoin legalization.
If I may suggest to add Brazil as Brazil have been launching their first Masters degree Programme in Cryptofinance. This would greatly help bitcoin in its existense.
https://news.bitcoin.com/brazilian-university-launches-cryptocurrency-masters-programme/