[readflaggedcomm]

Are they born into part-time employment?

[ouchjars]

If you have any of a number of disabilities, that is exactly the case.

[colinmhayes]

I don't know about Amazon, but many employers don't let most employees work full time. If that's the case these workers sort of are born into part-time employment since the socioeconomic class you grow up in is the biggest factor of success.