Actually license or not if they will turn scam the output will be the same so I'd rather go to the casino which have long time reputation holds and give a quality services with series of promotions rather than spending my cents on the license one which doesn't have any appealing things to convince me to play at them.
But I believe license is so important but for sure gamblers will play if they like the site since we are risk takers on our own ways.
There are still some sites that doesnt have license but still able to get some considerable amount of players on this market which is great.People will mainly look
for sites which are fair and does really hit all the checkboxes for people to get interested but somehow having a license will really be appealing in most eyes
because they do know that if ever the site would become scam then they do have at least the assurance for some sort of recovery or compensation.