Katara vs Pakku is literally an example of what happens when you "study some scrolls" and think you're good enough to face a master lmao.
He'll be quick to find out those tattoos aren't for display purposes only
Be sokka
-1 guy
-no bending
-no backup
-no combat experience
Be willing to fight a whole fire navy ship for your village
Forever my favorite character in the verse
Don't see how this was debated especially since we literally see sand benders do this in the show.
Manipulating sand grains to move the winds as a practical and technical form of air bending
There's also the ability to liquify earth itself allowing you to move it in a more fluid state that grants you more versatile usage and extends the reach of your ability just Like "Yun the false avatar" did
Water 🌊 and earth 🪨
The mixture of earth and water creates mud. Mud has been shown to be bent by water and earth benders like Katara & Toph. They are also able to extract their elements (earth and water) from mud itself suggesting a more mixed control over mud
This might be glaze but how's Ozai separating positive and negative energy to create lightning all while still producing enough energy from his chi to fire bend and propel himself with one freaking leg
Proper fire-bender that man
I'm sure they can
But you have to realize most of these sub forms require talent and skill and some are just very rare and kind of selected by birth
And then you'll have to come into account how they actually discover they can do this
Probably need to be pushed to the very lim