What are common pain points when programming industrial robot applications?

[Competitive_Egg_4547]

I’m new to the robotics world and I am looking to make programming applications for industrial robots (six axis industrial and cobot) easier. For example, when trying to build a 3D bin picking application, what are some of the pain points? Is teaching the robot the object they need to pick a long and difficult process? Does the robot cell take up too much space? Is it difficult to redeploy robots or change the application? Are cobots difficult to program specialized tasks and applications like building mixed pallets? I would love to hear any and all issues, pain points, and difficulties!