Players who trust the process of playing games each day as a better method to earn huge profits, can continue practicing what they feel is true. While gamblers who find it confusing and wants to enjoy a few more days off gambling definitely will get a win some day. It's not written anywhere that a player who doesn't gamble everyday wouldn't win.
That's true. Gambling is all about luck and sometimes skills matter too. It depends on what type of game someone is playing. What type of gambling are they doing? It could be Sportsbet. Betting on sports everyday isn't bad especially if you know which team is stronger. You have to be up to date with the team news like which players is available, if any team missing their key players or not. These things affects on the game as well. Sportsbetting does not required a lot of time to place a bet. If you could place one or two bet a day which may take an hour to research about the team and place the bet.
Bet gamblers have other reasons why they gamble every day. Not just once a week. Due to the chase for money, they begin to predict on leagues they know nothing about. Staking money on teams we don't know doesn't guarantee any chances of winning. However, from the look at it, the gambler wants to double his earning due to his bankroll. In the essence of maintaining the bankroll, the gambler can make multiple mistakes trying to win a game. Winning big in sport betting, as you said, staking huge money on 2 games we've done our research on is more profitable. But risky for a gambler that looks upon his bank roll and manages dearly. He'd prefer to earn huge by complicating the slip with unrealistic predictions and stake on it little amount. On the long run, he'd hardly win, and may have lost a whooping amount of little money turned to big money for the casino.