If you're not comfortable to complete the level 2, then don't do it and vice versa. I see no reason to complete the higher tier if there's no other benefit, it just make me to spent more time since I need to take a picture and upload to the site lol.
Am a bit surprised to see the whole Roobet KYC debate continue for so long. Fact is that their mandatory KYC changes sucked which is why so many gamblers expressed their displeasure, but complaining about them for so long is unnecessary.
Also, the higher levels are enforced only if they find something suspicious related to the account in question.