I get you point now and agree. With the loss of manufacturing we’ve had since the 80’s it could introduce inferior products.
I’ve had more than my share of fitters that tried to cut corners when prepping my joints. As the welder, it was my responsibility to make sure the piping was built per the plans. I had some that couldn’t figure out why they were getting laid off, but I wasn’t.
Well no, before I retired from the fab shop, the welder was only responsible for his weld, the fitter was responsible for the fit meaning did the spool match the print or was there too much high low in the fit, You re right, the welder was responsible if the fit wasn’t precise for the weld but not for the finished product.