While I agree that everybody should just keep to themselves how much Bitcoin they own, if somebody is held at gunpoint or at knifepoint, it doesn't anymore matter which wallet you're using, or whether it is multi-sig or not, or whether you have a copy of your seed phrase or some other backup. It's either your life or you cough up those information.
Perhaps it will help if your coins are stored in different wallets. If such a thing happens, God forbid, you will give the information of only one wallet.
I agree with this. Keeping all your eggs in one basket no matter how strong it is can always cause problems if something happens with the basket. Similarly, if you are keeping all your Bitcoin or other assets in a single wallet, you are making a mistake and that is now how you should be doing this, but instead, create multiple wallets and split your assets in those wallets and make sure you use very secure wallets so that your funds stay safe and in case something bad happens, you won't lose all the funds.
One should also make sure that they are backing up their wallets in different devices and aren't keeping all the keys and phrases in one place because then it wouldn't make any sense. If someone puts a gun on your head and asks you to open all the wallets with those keys, you won't have a say.
This is why, security must be the first priority, and after that, privacy. As OP said, don't discuss your finances with anyone no matter how close they are to you.