What skills?
Yes skill. There are skill based casino games some examples are poker and blackjack which I know of very well. In these games of skill you require the strategic thinking and decision-making skill. You also require card counting skill as well as the skill to outsmart whoever you are playing against.
Skills means the ability too do something well. Example is Messy that is skilled in football. It can be something that you learn and know how to do well. But should we apply to in gambling? I will say no because the more you play the games in casino or betting, you will notice that the gambling sites are only setting things up in a way that you will be the one that is losing. So what is the skills on that when their are house edge and unfavorable odds?