IF all the jobs in field X are in locations a,b,c and you can't move there then yes seems like it wouldn't be smart to study field X in order to get a job unles

IF all the jobs in field X are in locations a,b,c and you can't move there then yes seems like it wouldn't be smart to study field X in order to get a job unless you see a future where locations with that job are going to change to somewhere you can go.