I have no issue with condensing, expanding or changing the list of skills in the game. Or indeed from campaign to campaign. And I also have no issue with turning some skills into tool proficiencies or tool proficiencies into skills.
I myself usually do it because I use the Variable Ability Score variant rule and thus the need for two skills when one skill with a n alternate ability score can suffice is gone. I don't use Sleight of Hand, I use Dexterity (Deception). I don't use Intimidation, I use Strength (Persuasion). I don't use Animal Handling, I use Wisdom (Nature). I don't use Acrobatics, I use Dexterity (Athletics). I don't use Medicine, I use Intelligence (Survival).
This also then allows me to add skills (or more to the point broad subjects of information) that I think some campaigns find useful. So in Eberron I added Commerce, Warfare, and Mechanics as three new skills to be proficient in, and depending on what you were doing any of the six ability scores could apply. Trying to appraise that gem? Intelligence (Commerce). Haggling over the price of said gem? Charisma (Commerce). Remembering events during the Last War would be Intelligence (Warfare) while confirming tactics in a battle plan would be Wisdom (Warfare) and being able to get that trebuchet loaded up quickly would be Strength (Warfare).
Whatever is going to work best for the game and be the most applicable is what I would go with. Because when I look at my Pathfinder character I have and see that I have had to put points in both the skills of Diplomacy and Profession: Diplomat... I realize just how stupid and useless some skills and skill lists can be.
I myself usually do it because I use the Variable Ability Score variant rule and thus the need for two skills when one skill with a n alternate ability score can suffice is gone. I don't use Sleight of Hand, I use Dexterity (Deception). I don't use Intimidation, I use Strength (Persuasion). I don't use Animal Handling, I use Wisdom (Nature). I don't use Acrobatics, I use Dexterity (Athletics). I don't use Medicine, I use Intelligence (Survival).
This also then allows me to add skills (or more to the point broad subjects of information) that I think some campaigns find useful. So in Eberron I added Commerce, Warfare, and Mechanics as three new skills to be proficient in, and depending on what you were doing any of the six ability scores could apply. Trying to appraise that gem? Intelligence (Commerce). Haggling over the price of said gem? Charisma (Commerce). Remembering events during the Last War would be Intelligence (Warfare) while confirming tactics in a battle plan would be Wisdom (Warfare) and being able to get that trebuchet loaded up quickly would be Strength (Warfare).
Whatever is going to work best for the game and be the most applicable is what I would go with. Because when I look at my Pathfinder character I have and see that I have had to put points in both the skills of Diplomacy and Profession: Diplomat... I realize just how stupid and useless some skills and skill lists can be.