Washing buds

Gang - do I need to wash my buds when harvesting an outdoor grow? This is my first outdoors and 3rd altogether and before today I didn't even know washing buds was a thing. I thought the idea was to try and keep the water off them?
A few pics for reference

Depends on how dirty they get.
Lots of vids about it on youtube

I would recommend doing a bud wash with outdoor plants at chop time.
You can use a microscope to check the buds out if you’re skeptical. Dead bugs, bug feces, hair, etc can get lodged into your buds when tightening up while they dry.

If you did pesticides i would wash