We aren't that perfect and it's normal that we would really be committing out mistakes specially if we don't know something but on the moment that you do get or know such information then it would really be adding up in overall experience that we do have until we do consider ourselves to be that an experienced and knowledgeable person on which this is really that typical.As speaking about KYC then this won't really be something that avoidable because even if we do speak about crypto based platforms but still as years passing by, they do become that centralized and having that license on which simply means that potential KYC might be asked.
Yes, any casino that is regulated will definitely ask for KYC from their customers in the future. As long as they have the rules of KYC requirements in their policy, they have the right to ask a particular customer to perform due to some reasons best known to them. The only casinos that may not request KYC are some of the new, non-regulated casinos, and some of them can be scams too.
Regulated casinos doesn't necessarily mean they won't turn as scam, as time goes by. Because even the casino is regulated and licensed, there are some cases that they turned as shady and eventually scam. Therefore it's still best to choose the casino to play in since you're going to risk your hard-earned money just to gamble. Anyway, nowadays, a casino asking for kyc is not isolated anymore. Thus, expect that you'll be asked of kyc if you're playing on a regulated casino.
I also have the impression there is an important percentage of people within the gambling community which over-estimated the actual value the licenses have when comes to spotting differences between reliable and likely scam casinos. Licenses can be acquired by any casino which fills some basic requirements and also pays enough for the license itself, it does not guarantee anything shady will come and happen in the cute with that casino. In the case of casinos which are unlicensed or not regulated at the beginning of their operations, most of those who act in good faith and do not wish to scam any penny out their gamblers will be asked by authorities to get regulated after they have accumulated an important number of gamblers and a high enough volume, most of them will accept to get licensed, since they would not like to get their domain seized and lose all their hard work and community.
Whether we like it or not, the tendency is towards licensing, but we should not look at it as a warranty of reputation. A good reputation and time in the market is worth more than a license.