At a much smaller scale, that's what happened to me with the Wordle game. Once I lost my 100%, I never touched it again. With Duolingo the drive is the learning

At a much smaller scale, that's what happened to me with the Wordle game. Once I lost my 100%, I never touched it again. With Duolingo the drive is the learning so I've lost the streak many times (current is highest at 60) but that matters nothing to me. With Wordle, I think I was no longer having much fun, and keeping the streak probably was the only reason I played.