I do agree that we can't use skill and experience in a dice game or other casino games but in sports, you can use your skills to guess more accurate results. But still, at the end, you must need a luck to support your bet to win those sports picks because there are chances that these can be fixed and your prediction can go wrong. As per more all these gambling games are equally risky.
Dice game or other simple games those games are good only for those who wants fast result..
Even without skills just watching the previous you will know who are the strong team.