A fairly common task is to see the you did something wrong almost as soon as you did it, click back to fix it, and then go to where you left off. And a common place is the end of a line.
More than once I’ve done this and I discovered right away that there’s no End key on the keyboard. Huh? Arrow keys, yes. But no End key. Of all the keys that could be omitted from the keyboard layout, the End key is probably one of the last ones you’d want to discard.
(That the Delete key is in the place of and acts like the Backspace key on PCs and that the Delete key was omitted as well is another issue.)