Yep, excellent example. Such details have a minimal expense, especially when a single design can be applied to multiple products (and generations) of them without much (or any) modification.
Source: @lispi314
https://mastodon.social/@lispi314@udongein.xyz/111564194983436418
@shoq Oh it's very often true.
You can look at rules and standards from everyone from OSHA through UL through various national electric codes to see just how micromanaging they are.
It's the kind of thing I personally deal with everyday, that if I build one way then I only have to deal with one set of codes, but if I do something like have a detachable cord then I have to deal with two different sets of codes, getting them both certified separately, and that adds a whole lot of hassle and expense.
Or indeed buy the cord from another manufacturer that had it certified separately and bundle it in the package for sale.
So again, all you have to certify is a single thing (a standardized socket), which is as many you as you would've had to certify anyway.