
What would have even happened if shifu gave in?
Shifu was firm in following oogway's words. He never argued or did something else after oogway was gone. But if Tai Lung showed up and asked for the scroll or to be the dragon warrior, what would have even been different?
Is it implied he'd be some tyrant villain and irresponsible as the dragon warrior, or would he just crash out and realize its an empty title for him? Tai Lung basically wanted to do it because Shifu hyped the role up and raised him for that purpose, but at this point, tai lung has realized shifu didnt truly respect him (raised him just for a job, then gave him no support to handle the disappointment, then never tried reconciling with him for 20 years, and even replaced him). When Tai Lung sees the scroll, it means nothing to him, and he's been vilified in the village for a while.
I think if Shifu caved at some point, things wouldnt even really be that different. At two points tai lung pauses, when shifu confesses his wrongs, and when he sees the scroll, so if it was a different type of story, i could see tai lung entering some sort of redemption arc there where he abandons this path. shen is a character i understand literally giving up since he has nothing else and spent his time mass murdering a species, but tai lung was raised for years to presumably defend the village, then locked up, so i dont think he had no options after if he did decide to think about something other than the scroll or title. Oogway's choice honestly just seemed like a self-fufilling prophecy, since at most Tai Lung's childhood was harmful to himself, not others. Him probably leaving and living for himself would've been the most redeeming path, and would turn to him naturally helping others after.