My ideas for Minecraft 1.21

1: Elytra change and Hardened Elytra:

(1: decrease the speed of the elytra when you use a firework by 30%

2: Hardened Elytra: putting a elytra on the middle and 8 armadillo scute around on a crafting table gives you the Hardened Elytra, the Hardened Elytra gives you the same defense as the chainmail leggings and it has 64 more durability points than a regular elytra, it works the same as the regular elytra)

2: Changes to minecarts:

(1: speed of minecarts increased by 200%

2: better furnace minecarts: furnace minecarts works just like a furnace)

3: Bedrock parities:

(1: chests, trapped chests, furnaces, barrels, blast furnaces and other blocks that can store items can be moved by pistons

2: the Wither on Java edition would be the same as bedrock edition

3: cauldrons on Java edition would be the same as bedrock edition)

4: Tuff Golem: unlike the tuff golem from the mob vote this one is actually useful: you can give a pickaxe to the tuff golem and then make it break blocks for you, you also can make the tuff golem only break a specific block on a certain place