Let's say that one day you died for any reason and no one in the family understands these things or you do not have family.

What kind of plan do you have ?

I am sure we would all have loved to be involved with bitcoin technology from the beginning. Not just because of money, but because it would have been super cool to discuss matters with Satoshi, and participate in the evolution of the network.

Which other emerging technology (outside the cryptocurrency area) are you currently following and finding interesting?

English is the only language that is globally accepted and is spoken in all countries of the world.
If you want to travel to other countries, cooperate with others, learn something, work abroad... you need to understand English.
So, I really suggest you to learn English as soon as you can.