A surprising number. Basically *everyone* in Wichita knows how to or has a family member who knows how to weld etc. because the aircraft industry (and to a lesser extent, oil and gas though most of that is further west) just permeates the town. There are little machine shops on every corner, if you need something welded/machined you can always find someone who'll do it for a case of beer.
Welding is also pretty common in rural/ag areas, sometimes with strange results. https://nypost.com/2020/12/10/mystery-of-booming-sound-in-new-jersey-apparently-solved/
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