While you are alive it is unwise to give anyone access to your bitcoin wallet, however if you should die unexpectedly (we all go someday), or are otherwise incapacitated; How can you provide access to your wallet for your heirs, ensuring the funds aren't just left inaccessible in your hard drive ?
The solution I propose is to use a service that allows you to schedule an e-mail to be sent at a later date, like boomeranggmail.com
if you have a gmail account, or lettermelater.com
. For those using Microsft Outlook check here office.microsoft.com/en-us/outlook-help/delay-or-schedule-sending-e-mail-messages-HP001232817.aspx#BM1
In the email you could send the passwords needed to access your wallet.dat file. Alternatively you could send the wallet.dat file itself as an attachment(preferably encrypted with password protection).However, I would caution you from sending the wallet.dat file as an attachment without first letting the receiver know your intentions, as some people would be concerned about opening an attachment from someone who is dead!
A major concern though is the danger of e-mails being intercepted and read by other parties. To solve this you could use a personal hint which only that person would know which would provide the password to unencrypt the attached wallet file. Better yet you could use PGP to secure the whole message.
I would suggest scheduling the e-mail to be sent in about a year's time plus another message sent to yourself about a month in advance reminding you to delay the message for another year.
A similar scheme can be used in general to give others access to your digital content that you may not want to share while you are alive.
Anyways let me know what you think