im pretty sure chinese teacups have no handles because of their generally smaller size and unique shape which makes handles unnecessary.
non-fermented tea (green tea) lightly fermented teas (oolongs, aged white teas) are often brewed at higher too-hot-to-handle temperatures 90c-95c which some choose to enjoy at to get the full spectrum of flavor.
the design of a good tea cup have thin flared edges for faster heat dissipation which isnt present in coffee mugs or western tea cups. there's also a specific "three point grip" to enjoy freshly brewed tea.
so chinese tea cup is less about teaching patience, more so teaching how to enjoy tea properly using physics 😂
