Do you think players need more variation? Well this datapack might fix that for you.
What does this do?
Upon loging into a world with this datapack, your size will vary from 0.85 to 1.15 times the normal height. Except with the use of commands, you are stuck with this height forever.
How to use
Enter /function rps:config
You can now change the minimum and maximum size a player can have. You can also re-roll somebody's size by typing in their name.