I've given everything I know and keep about bitcoin to my sister, because she's also a bitcoin user, this also she did to me that is giving all account information and bitcoin wallet so that if we dead then bitcoin can be useful.
Nice decisions you have sharing to your one of family about bitcoin. At least one of your family knows your wallet in case their is emergency and you can't use it, their is someone who can access to your wallet. We have our own decision's to save our bitcoin because when we die it will not be useful if forgetting to share it to others you trust.