"cannot_step_up" Block Tag

a tag for making certain blocks unable to be stepped up by anything (possibly even two tags, one for players and one for mobs), this would be useful for staying inside things like cauldrons and composters when you have a higher than normal step height, or just generally for mapmakers to make certain blocks un-step-up-able while still making movement smoother by allowing players to walk up full blocks or higher

in the vanilla datapack i think it could be used for barriers since they're invisible and it might be useful to only allow players to jump up onto them instead of being able to step up onto them from slabs or stairs, maybe also harmful blocks like cactus and magma blocks, the vanilla applications are slim i admit. while in custom datapacks it could be useful to stop players from stepping onto things like sculk sensors and shriekers without meaning to, as a means to make environments harder/easier to traverse without stripping the player of their ability to walk up blocks entirely (harder by making jumping strictly necessary at times, easier by funneling players through a path that they are able to step up but not letting them step up the sides- while not having any strict barriers).

i think this would make for a good addition, even if it doesn't get used in vanilla much, i'm sure it'd get a lot of mileage from mapmakers

alternate names: #no_step, #cannot_step, #disables_step(_up), #unsteppy (that ones just for fun)