I admire your persistence. You've been in crypto space for years. I don't know how much you've achieved-- probably not much-- but you're still here developing new products.
Personally, I'd rather risk writing down my complete login details on a piece of paper and keep it somewhere accessible only to me. The moment I'm gone, my family members would definitely go through all I've left and find out that I own certain amounts of crypto in various exchanges and other wallets.
As to your new product, on my end, can I cancel a policy and replace it with another one? How? Also, what if the policy holder would try to withdraw the funds even if I am still alive, although offline for a few months?