Taekwondo is like Karate but a little more jumpy.
Tae Kwon Do is unique in its side-on stance with raised front leg on stand-by for a side-kick. Turning between one side to the next, never in neutral stance where the sharp techniques exist to separate the men from the boys.
Taekwondo will build your acrobatic fighting ability like no other martial art, but its practicality for on-the-street self defence is little different from general Western Kickboxing or Japanese Karate.
One thing Taokwondo is good for is helping you become familiar with long-distance spacial awareness, due to the emphasis on kicking techniques, and with all the jumping kicks involved.
Notice how the woman in this video sees the aggressor step up to her aggressively. She sees an opening, and takes it as a signal to “kick now or regret missing the opportunity”. She does’t want to wrestle the guy because he’s probably stronger than her, so she kicks when the opportunity presents itself. Fast forward to 1:23 to see the 1-second fight.