16-Stacking Items to 64 (not every one)

Inventory management is already a problem in the game, and 16-stacking items are part of the problem. Some of them, like enderpearls and snowballs/eggs are understandable, since they're part of PVP and it would be too broken to spam them with a single slot. This also applies to empty buckets.

However, there are items that do not need this category, they're just annoyingly stacking in a different way. Signs, hanging signs, honey bottles, banners and armor stands do not give any advantage by having more of them. Why limit it? They should stack to 64.

Also, some items not stacking like minecarts, saddles and boats is weird. They should at least stack to 16, so you can carry multiple for villagers or in a multiplayer world. Music discs are kind of a trophy but should also be totally stackable.