Sure. But casual users don't use password managers, and if they do probably they don't have sufficient opsec and backup procedures in place.
A memorable (easy to transcribe and store as well) passphrase seems a good starting point.
Discussion
Make a 24 word seed
Use the first 12 words as a decoy
Use the second 12 words as a decoy
Use the second 12 plus the first 12 as a 24 word decoy
Now you have three decoys using the vast ecosystem of 12/24 phrase storage tools and no one ever has to lose funds because wtf is a 25 word seed
Splitting a 24-word seed does not create two valid 12-word seeds, the checksum fails.
And even if it were the case: