I think risk aversion is a big one, at least here in Australia. You might be seen as someone who failed rather than someone who tried and learned for next time. There is also not much VC culture so you have to convince conservative banks that your wild idea (gamble?) has merit.

Jeremy Howard (Fast AI) had a talk that hit home when discussing startups in AU vs US, why he left and why he came back:

https://www.youtube.com/watch?v=2uygOz2fORo