As I'm nearing the end of my junior year, I'm starting to seriously consider whether I'll attend graduate school for physics in the upcoming years. I enjoy physics and doing research in physics, but I also don't want to be unemployed years down the line or the only employment option available is remaining an eternal post-doc. From what I've read on here and numerous other forums, it would appear that many (perhaps a majority) regret pursuing their PhD's in the long run and would have rather wished to pursue physics as a hobby and do something more "practical". So, my question for those with PhD's or currently pursuing one: If you could go back to the time you were finishing your undergraduate, would you do the PhD all over again? If not, what would you rather have done differently?