Which is why, I'm eager to know which are the best practices to preserve my cryptocurrency in case I die in the future? Any recommendations or suggestions will be highly appreciated. Thanks in advance. 
There's nothing better than to let someone know your stuff. It might be risky 'cause they may possibly spend your crypto without you knowing it. But the thing is if you're not in your capacity to be able to spend it anymore, at least there is somebody close to you who will be able to manage so that your efforts just to obtain such amount won't just go to waste. Nothing's wrong on letting someone know your thing. Besides, you have your own decision to choose who's worthy of receiving it.