BiFrost: Kiersey Tempermants as Races

Working on my BiForst world I figured I needed something to replace the races, as everyone being human would get extremely boring. I don't ever play human, so if forced into it I want a few options. Thinking of ways to differentiate it, I went through several options: talents similar to the d20 modern classes, zodiac signs, etc. But ultimately I decided that picking from the 4 temperaments of the Kiersey sorter would make sense. I looked at half-elves for balance and am trying it out in a game right now. We'll see how it works!

Explorer
Explorer’s want to experience the world. Often living one day at a time, they want to get the most of out of their time and will not stand for boredom when there is something more fun waiting to be done. Always wanting to enjoy the present moment, they value freedom and beauty. Explorer’s make up roughly 30% of the human population.
Ability Score Increase. You gain a +2 to your Charisma score and +1 to two other ability scores of your choice.
Alignment. Explorers enjoy freedom and often lean towards Chaotic alignments.
Size. Your size is medium.
Speed. Your walking speed is 30 feet.
Languages. You can speak two languages of your choice.
Tool Proficiency. You gain proficiency in one type of artisan's tools, musical instrument, or vehicle.
Skill Versatility. You gain training in two skills of your choice.
Bold. You gain advantage on saving throws to resist being frightened.

Analyst
Analysts approach the world rationally. They see the world as a collection of systems to be understood and mastered. They have little time for those who stand in the way of their vision, and appreciate those who facilitate the accomplishment of their goals. Analysts make up roughly 10% of the human population.
Ability Score Increase. You gain a +2 to your Intelligence score and +1 to two other ability scores of your choice.
Alignment. Analysts lean towards lawful alignments, believing that there is a best way to do things.
Size. Your size is medium
Speed. Your walking speed is 30 feet.
Languages. You can speak two languages of your choice.
Knowledgeable. You gain training in one Intelligence skill of your choice. Choose a specific area of knowledge in that Intelligence skill; whenever you make an ability check concerning that area of study you add double your proficiency bonus.
Rational. You gain advantage on an Intelligence saving throw or ability check. You can use this ability again after a long or short rest.

Diplomat
Diplomats see the world as it should be. Their ideals guide as they shape the lives of those around them. Their goal is to understand themselves and achieve fulfillment. They dislike confrontation, but will stand up for what they believe in. Diplomats make up roughly 20% of the human population.
Ability Score Increase. You gain +2 to your Charisma score and +1 to two other ability scores of your choice.
Alignment. Diplomats like for people to find their own paths and lean towards Chaotic alignments.
Size. Your size is medium.
Speed. Your walking speed is 30 feet.
Languages. You can speak two languages of your choice.
Empathetic. You gain training in Insight and one Charisma skill of your choice.
Authentic. You gain advantage on a Charisma saving throw or ability check. You can use this ability again after a long or short rest.

Sentinel
Sentinels are hardworking and loyal. Valuing security, Sentinels look to the past for wisdom and take time to plan for the future. They use practical and traditional methods to achieve their goals. Sentinels make up roughly 40% of the human population.
Ability Score Increase. You gain a +2 to your Wisdom score and +1 to two other ability scores of your choice.
Alignment. Sentinels care about tradition and lean towards Lawful alignments.
Size. Your size is medium.
Speed. Your walking speed is 30 feet.
Languages. You can speak two languages of your choice.
Wisdom of Traditions. You gain advantage on a Wisdom saving throw or ability check. You can use this ability again after a long or short rest.
Durability. Your hit point maxiumum increases by 1. It increases by another 1 every left after that.