I have heard that many people carve their seed phrase on stone.
That's kind of some ancient tablets and we're no longer in that period. Carving it on a dog tag is way easier but you have to do it on your own and not someone to avail that service for you.
Storing your seed phrase is not an issue
It actually is.
Because there were people that have kept their seed phrases on their emails, google sheets and other online storage.