~snip
I want to but the problem is, I don't know who because I'm the only one who knows Bitcoin in our family.
I don't have my own family at this moment but my couple knows a bit about Bitcoin so maybe she will be the one whom I share my keys to. I want to teach my relatives too about cryptocurrency but I find them not interested when it comes to this thing so I decided not to teach them. I decided that I will teach my own family regarding crypto in the future.
I think you are doing the right thing, you must explain the basics of crypto to the person you intend to leave your funds to in the event of your death. If you do not have kids right now maybe you can teach them too.
After all you have to make allowances to ensure your loved ones (or chosen ones) receive your funds in the event of your permanent disability or death.