If you play in good casino you don`t lose your money but lose your time. It is bad, but it is better than losing your money in unknown cheating casino.
I don't understand what you mean by losing time if one play in good casino because definitely time is required to play in casino and I don't consider such time as being lost because it is invested in something worthwhile. What I understand as losing time is when someone engages in activities that does not bring back anything meaningful and casino does not qualify as that because people do win massively.
I mean that you spend some time for KYC but as the result you`ll get your money. You can lose several days, waiting KYC and your money. Most times i KYCed in 1-2 days, but there were several situations when it took about a week.
For me though, I've never had to submit my kyc documents for verification on any platform and had to wait up to a week, by any platform, i mean gambling casinos actually, but talk about crypto exchanges, the exchanges platform where it got them that much time (over a week actually) to get my account verified after I've submitted kyc documents they requested fo, was XT.com exchange, yeah, and I did not actually make a big deal of it since beforehand, I understood that they are one of the shitty exchanges around.
Coming back to passing kyc verification on gambling casinos, I would say that majorly all good casinos processes their customers kyc verification request within a day or maximum of 3 days if late, any casino that takes longer than this to verify their users kyc information is shitty to me.