I've always had this small doubt that those seed words I wrote down and encrypted might have a typo, or be wrong, and I obviously didn't want them to hang around in clear text or via the network for anything to snoop it.
You can always test if your seed is correct immediately after your created it. Restore your wallet from seed and check if it generates the same address/addresses as the original one. Might be a lengthy and boring process, especially if we are talking about hardware wallets and the need to enter those words on the small screen. Safety first, as always.
The seeds should not be saved on your computer though. It's good that you encrypted it, but still. Use pen and paper, not a digital format.