Plumbers don't tend to be unemployed
Shirts and skirts can easily be chopped in hard times or where there is an economic downturn.
In my day job i often make site visits to construction sites. Its the building and extending season. For the last couple of weeks i have been visiting construction sites in Cheshire. There are some fairly wealthy areas out there.
People are commissioning new houses to be built and/or grandiose extensions/building works.
Some sites are just normal emis having an extension.
Whatever it is all i see are skilled professionals going about their work. Builders,plumbers, heating Engineers, electricians, etc etc
Its very male dominated (why ??). But the common factor is that generally they are all thoroughly decent guys, happy, cheerful,love their work and the atmosphere of all working together to create something must beat an arse licking, sniping culture of many an office any day.
The other thing of course is that they all have nice new vans,sometimes they have a few nice new vans. They are all making money and in work.
Most of the guys i know are fully booked up for months. The ones struggling for work tout around on those crummy find a tradesman sites that you see.