I do really love the robotic sample collection missions. Sending people along is way harder on some respects, but if anything goes a little bit wrong, you have

I do really love the robotic sample collection missions. Sending people along is way harder on some respects, but if anything goes a little bit wrong, you have a meatbag to take it apart, figure out the issue and Apollo 13 it back to working with the tools on board. Robotic systems are limited in their sensors to detect and diagnose issues and in their ability to fix things even if they know what the problem is. And so much has to go exactly right to launch, get into lunar orbit, land, gather the sample, load it, launch again, meet the orbiter, transfer the samples again, and get them back to Earth and land them. Plus it's on the far side, so everything is relayed and can't be seen directly.