If you don't like or want give your KYC details, just don't play in roobet. If you feel you can trust them with your KYC, go for it.
At first, im also hesitant to comply with their kyc verification but I changed my mind and fill the needed information.
There are many gambling sites that dont require kyc, so yes if you dont feel to disclose your personal information then you can chose other casinos to satisfy your gambling needs.