Concerned about radiation dose from Flying?

To the airline pilots in this sub: How concerned are you about your radiation dose from flying? I read the average annual dose in this career is about 2mSv (+ 2mSv for an average person). Some cancers occur slightly more often in pilots which might also reduce life expectancy slightly.

Is this something that you think regularly about? Does your airline inform you what annual radiation dose they calculated for you based on flight time, routes and altitude? For radiation workers there is a pass where occupationally received doses are documented, is there something similar?

Would you ever bid for more equatorial routes (e.g. NA<->SA or Europe<->Africa) instead of a more polar route where doses are roughly twice as high due to earth's magnetic field? (Similar timezone-> less circadian rhythm disruption is an added benefit)