Yes!
You can share you seed phrase with someone you trust most among your siblings, and if you have a child or a daughter, you can share with them because you never can tell what might happen to you in the future. If you keep your seed phrase to yourself, if you are no more, or lose your sense due to one problem or another, you have lost all your Bitcoin or crypto in your wallet, that is why it is good to share your secrets with someone you really trust.

However, you need to teach and educate your children about Bitcoin and cryptocurrency if you really have investment in there, so that they can easily access your savings if you are no more, or they can also have similar investment.