good to know what you and your wife are doing to help him. Talk him about the Cuban Hive comunity. He can reach and receive help to understand Hive. We are distributed for all the country and many of us make physical reunions (I post yesterday about the last one in my city).
This is the link to the cuban Community in Telegram
https://t.me/comunidadcubanahive
This is a business that help cubans to swap HIVE or HBd to cuban pesos, or people outside the country to send Remittances:
!BBH