If you believe you're skilled at sports betting, enough to pick the single best game daily.. could you actually discipline yourself to bet just once per day for an entire season to prove your profitability?
Personally, I'd struggle.
Someone can never be skillful enough and I also doubt if somebody could be that consistent to only make themselves believe in one bet all the time when we have so many beautiful games that usually flash on some of the weeks, so actually the temptation of it is like gambler trying to make himself stop gambling and is a feeling that can overwhelmed the person after discipline himself for sometimes because at the very first start of taking some decisions there will mostly come a time when the person might be very weak to resist and before the season will be concluded they have started gambling on multiple instead of single, I saw it before.
Especially in gambling, no one can ever be skillful enough. You may be skillful but you may not be able to change the outcome of the game. Suppose you have been gambling for the past five or ten years but you can never say for sure that you will definitely win or that your chances of winning are 100%. That's why I do not see the assessment of skill being perfect in gambling. They may be able to entice others to gamble but they have not yet found a way to prevent themselves from losing.