Good points, but these are mainly areas the average PC wouldn't be particularly interested in - they just aren't FUN to roleplay.
Some of those areas could be covered with existing skills - Machinist or Metallurgy for example might cover for Blacksmithing.
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If it moves, shoot it, if not push it, if it still doesn't move, use explosives.
Nothing happens in isolation - it's called "the butterfly effect"
Mors ante pudorem
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