I don't think people would mind DU as much as the 'real' custom character story if there wasn't so much baggage. The 15 years as a serial killer in baldur's gate, for one. Having control taken out of your hands randomly and unpredictably even really early in the game. Honestly it doesn't sound too much fun even as an evil character if you don't like obligate murerhoboing and want to be something a little more subtle.
If I wasn't afraid that I'd be getting a truncated 'default' story playing Tav, I wouldn't touch DU with a ten foot pole. And the fact that by all indications Larian has given Tav no longer has any sort of 'Tav story' makes me feel that's kinda just the way things are.
'No story' vs 'serial killer' just doesn't sound that appealing a choice for a custom character in a game like this that otherwise sells itself heavily on its massive amount of unique story content (origin characters)
key features
origin characters
"offer a hand-crafted experience, each with their own unique traits, agenda and outlook on the world.
their story intersect with the entire narrative and your choices will determine whether those stroies end in redemption, salvation, domination or many other outcomes"
from
https://baldursgate3.game/about/---------------------------------------------------------------------------------------------------------------------------------
i think origin characters have their limitations, because of their unique traits and agenda.
the limitations of origin characters give the origin characters go to the bad ends easier than tav,
and can not reach tav's altitude.
i suppose as : gale and the goddess of magic are deadlock. if gale just try redemption, this will lead an ok end.
but if gale wants more and try to dominate the goddess again, and then gale will gain the worst end.
the dark urge's deadlock is his/her dark urge. if the dark urge just try redemption, this will lead an ok end.
but if the dark urge obeys his/her dark urge, adn then the dark urge will gain his/her worst end.
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tav doesn't have any deadlock, i think this can unlock many hidden plots that only tav can touch.
i used to hear the official statement "compares with the origin characters, tav is the real core. we will see the difference between bg3 with dos 2.".