Why is this called a sewing kit?
And this called a tool box?
I’ve always thought that the names of these items denigrates the value of a sewing kit. How come a screwdriver is a tool, but a sewing needle is a notion?
I think that the contents of a sewing kit are equivalent to a tool box.
The definition of tool is “an implement especially one held in the hand, as a hammer, saw or file, for performing or facilitating mechanical operations”.
Or “Any implement of manual operation”.
Or “Anything used as a means of accomplishing a task or purpose|.
You use the tools to do work. You may be fixing something or making something.
I understand that one container needs to be sturdier if its going to be thrown into the back of a truck, and that heavier tools will be put into it. But still, I think a tool kit can be anything you need to assist in accomplishing something, and needles, pins, thread, and scissors all qualify as such.