What @drehb is trying to tells you is that you have three points of danger:
- generating the keys;
- the key storage;
- use of the keys.
It will be extremely sad for you to enter The 112 Club and have your money stolen at the third point of danger when you decide to use them.
That’s why the solution with seed words from Trezor is good, because in the last point of danger you keep the security without making unnecessary expenses at the beginning.
Privacy. Security. Freedom