even if they know how to do it people still aren't going to go and check the result of every one of their hands - it's time consuming, and it's a pain in the ass.
It is not actually time consuming because people will most likely not check on their dust bet or the bet that they won. A simple copy-paste will actually do the job , nevertheless, some site even has their own verifier that will let verify your bet with a single click . Another thing will be Psychology issue though,
no one actually care if it is fair or not when they win and only
care to check about the fairness of the game whenever they lost Things may be much more complicated for now as this standard of provably fair is still new and of course in the future it can evolve and perhaps there will be a system to automatically verify your bet ( actually there is already a site for this, called moneypot but thats only limited to the site that uses its API )
As far as licenses
-snip-.
I do know about license and I do know that a licensed site will have a monthly or annualy inspection to ensure that they keep the fairness of the game but as far as I know that doesnt mean that a licensed site cant cheat during the play.
I am more of a fan to verify my own bet and
without the ability to verify your own bet, thats not what a true fairness is and basically being told that the game is fair but have zero ability verify it by yourself is more like a fairytale for me.
That said, you're right, not that many sites are licensed... so why trust these ones?
Some people prefer the ability to verify your own bets. The thing with license is pretty much gray area anyway. Site without license is fine as long as they offer you the ability to verify your own bet and being honest on the play