Well yeah, but you asked about ordinary everyday users. And the best I can come up with is that it's marginally harder to load a foreign OS and access an unencr

Well yeah, but you asked about ordinary everyday users. And the best I can come up with is that it's marginally harder to load a foreign OS and access an unencrypted drive. You can't just plug in a USB stick and power cycle the thing. Though I'm not sure if it's worth it, especially not if changing the bios is just a matter of seconds anyway (ordinary users probably won't put a password on it).