Just throwing in here, as an actual 30k beginner earlier in the year.
Given the option to set my own rank I would not have known what was correct; though I’d happily pick a ‘beginner, learning how to play’ option.
The first thing I did was play noob bot and amybot; bear in mind as a new player, I don’t even know how the interface works, so don’t want to risk playing an actual human. I promptly lost, and my rank plummeted appropriately. So definitely if the current starting rank disallows play with low ranked bots, that seems like an issue.
Regarding tsumego to set rank; I could see how this would be a hassle for a dan player, but at 30k this could even be fun (functionally a buzzfeed quiz 
).