Metal shops could definitely use some better software. Most don't prioritize it though, because everything has been "good enough" for so long.

A company I worked for had a supplier who cut metal. The owner was hardcore about making money. They wouldn't start cutting until he was devoting 95% of the sheet metal to product, and if the machines stopped cutting for more than 1 minute, an andon light would start flashing. Needless to say, he ran a very tight ship!