Casino Gambling involves Playing games that are base on luck factor and sometimes our skills also work out in this, it does not involve live event.
For me it's hard to say that casino gambling requires skill because it's obviously pure luck because there's no strategy whatsoever in these games like slots, dice, crashes and many other games maybe others people say Blackjack and Bacarat.
So it's a game full of thrill with enough self-control otherwise one will run out of money there.
Sport Betting simply means, playing on live matches which involves you and a particular player or team against each other.
Sports betting obviously for me this requires skill where you have to know which team is doing well, the players involved then this requires analysis then I guess this is a skill, on the one hand sports betting you can win and guess it if you choose the right bet even though the odds are small but you can win.