Could you please let me know if it’s possible to play at your casino without going through the mandatory verification during registration?
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No, you need to fill those before can access or play the game.
Some casinos ask for these in the front and some casinos do not. It's just level 1 verification, plus you have ability to update the information too change your name and other. Some people could be fill the form with random information to bypass these and they can just update latter with real information.
But make sure, If you verifity (Level 2-4) you update the level 1 with your real information using the document you're gonna to input to avoid some problem for verification.