Mobility

The mountains and caves are getting larger, so why don't we get more mobility to explore them. There aren't that many ways to move around in Minecraft efficiently. We have elytras, horses, minecarts, ice, and a method to go very fast with soul speed, but they aren't good. For example, building with rails, ice, and soul sand can be very time-consuming. Also elytras are late game and require farms for rockets. Horses are very bad in caves. A new way of mobility is needed and I have a few ideas. For the new caves we can get ropes and grappling hooks. The ropes can be crafted with wood and cobwebs. I know two ways for the grappling hook. It can be a launcher with grappling hook ammo, or it can ammo for a bow or crossbow. They can be made out of ropes and iron. For the mountains we can get more animals to ride on, an enchantment that makes you jump higher, and gliders which are worse versions of the elytra. Another animal could be an eagle that is ridable, and is slow. The enchantment could be found like other enchantments, but it is only for boots. The gliders could have separate tiers, each for every ore. Each tier glides a bit further. I hope that you add some form of these things Mojang.