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.
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?
Pants is a general name for a piece of garment worn to enclose both legs and elongate to the knee. Underpants might be what your laying reference to here but, even underpants are made public and that you could easily find at the beach. This makes the analogy your trying to make a little out of place as, private key or seed phrases aren't supposed to be exposed in any circumstance to the public eye or a third party and you'll be cool wth it.
The fact that, your coin could be transfered without you even knowing whom might have done that, even though you could trace the address(es) in which the coin was moved is what makes the whole idea of letting any individual aware of your private key or seed phrase. It's a master code that could function in any reset nd that isn't in your best interest.