Avoiding jobs that use [this/that os/dx] is not immature at all, it's reasonable. What's immature is joining a [this os] shop and demand to get a machine with [

Avoiding jobs that use [this/that os/dx] is not immature at all, it's reasonable. What's immature is joining a [this os] shop and demand to get a machine with [that os] and start to convert the team "to the right path" with a condescending attitude.