Other replies have focused on cost of living. I believe that's one factor but everybody underestimates the reluctance to relocate and willingness to relocate fa

Other replies have focused on cost of living. I believe that's one factor but everybody underestimates the reluctance to relocate and willingness to relocate factors. After accounting for cost of living, you're still _far_ better off as a software engineer almost anywhere in the US or Canada vs. the UK or anywhere else in Europe.