There could be a warning about having blocks fall directly under or on top of you.
https://minecraft.wiki/w/Falling_Block#Spawning
The question of usefulness remains, because blocks that fall without players interacting with blocks are only big dripleaf (if stood), and icicles (if lit nearby). Everything else needs more player intervention and is less useful on a HUD.
There could be a warning about having blocks fall directly under or on top of you.
https://minecraft.wiki/w/Falling_Block#Spawning
The question of usefulness remains, because blocks that fall without players interacting with blocks are only big dripleaf (if stood), and icicles (if lit nearby). Everything else needs more player intervention and is less useful on a HUD.