The problem of seeds is obviously crucial. Can we imagine being the one and only person who knows what to do with these 12/24 words? How to keep them safe, but also how to pass them on to heirs or friends (so that they know what to do with them?). Informing others while preserving your own security can be a real challenge in some countries.
And then there's betrayal, divorce etc...
What are the solutions?
Seed phrases are very crucial in storing/keeping your BTCs as this will give access to anyone who has it.
Assuming that you want to keep your seeds stored or your hardware wallet (non-custodial), the safest way would be to deposit it in a bank for safekeeping. In this way, you can notify your most trusted family member to have it secured and give them access for the banks acknowledge.
Personally, you should definitely avoid telling your seed phrases to your friends, unless you really trust them for safekeeping. Family will always be an option but you must qualify it to the person you trust the most.