If you do nothing at all, your funds will never move after you die. In reality, you're actually taking those unspent outputs out of circulation forever, so you'll be responsible for a tiny increase in bitcoin price... Less supply + equal demand should increase the price 
In my case: I have one daughter. She knows where to find my hardware wallets, she knows the pincode and i've taught her the basics. After I die, she'll be able to spend everything I held my whole life. I tried to make things as simple as possible for her: no hidden messages, no extra encryption, no ssss, just a hardware wallet and the proper gui... Making her jump over hurdles will only decrease the odds she'll actually be able to spend my funds, and i'd rather have her rob me wile i'm still alive than increase the odds she won't be able to spend my holdings after i die.
In my case: I have one daughter. She knows where to find my hardware wallets, she knows the pincode and i've taught her the basics. After I die, she'll be able to spend everything I held my whole life. I tried to make things as simple as possible for her: no hidden messages, no extra encryption, no ssss, just a hardware wallet and the proper gui... Making her jump over hurdles will only decrease the odds she'll actually be able to spend my funds, and i'd rather have her rob me wile i'm still alive than increase the odds she won't be able to spend my holdings after i die.
Yeah, it"s seems to be the best solution to make things as simple as possible and teach children to use them and even get them to practice together. All those approaches with SSS, multisig, and OP_codes may eventually make a mess. Everyone has to trust his/her children otherwise why live.