When it comes to bitcoin wallets is totally a kind of private pants for females and boxers for male. Bitcoin wallets is like ATM pin which is assigned to individuals which banks do not respect another person on your behave. Is personal identification number, that's what bitcoin wallets, private keys and seed are. But to some point because of love, trust and spouse lips, we give out our details freely for this person to access.
A private key is not a personal Identification number and a Bitcoin wallet is not like an ATM, these are two different technologies that operate on separate models, Private key doesn't identify who you are but enable you to prove ownership and spend your bitcoin. Bitcoin wallet just helps you to manage your private keys, it doesn't have any similarities to an ATM at all.
Can we also show our bitcoin key to someone closer, maybe love, spouse, next of kin?
Better still between someone; who introduced and taught you about bitcoin, a friend or family member and your children who's most preferred and reliable person to give out our information about your bitcoin?
Except you are ready to lose that Bitcoin at any time, your wallet seed phrase or private keys don't have to be revealed to anyone because when it becomes compromised, anyone can deny they didn't spend your bitcoin and you will have no one to blame. If you must give access to any bitcoin, make sure it is the one you don't want to protect again, maybe you feel like giving that one out but your main private keys must remain a mystery people should never know.