Rideable Players!
Even wanted to ride other players, as seen in Minecraft Ultimate (tournament lots of youtubers played in, including Technoblade). Just right click on the other players to get on. Experimental is not required!
Here is an example of what it would look like, on both PC and Mobile. It is highly optimized, so it should run lag free. To start, run /function players_rideable_false or /function players_rideable_true to enable/disable it.
On mobile, looking at another player will show this button, that when pressed will let you sit on the player you're looking at. The player on the bottom is the one controlling, but the player on top can look around, or shoot a bow to make a powerful combo!
Experimental is not required!
Installation
To start, run /function players_rideable_true
creator: GlitchyTurtle32