Just by looking at the terms and conditions, it's clear that players have a lower win rate than loss rate, while the house edge has a higher win rate and a lower loss rate. But this shouldn't be surprising, as this is normal, as they're seeking profit, and this is a business. If you enjoy gambling, you must set limits and maintain discipline so you don't overdo it. And don't place high expectations on gambling, as this can lead to ruin.
Another factor is how the bookmaker arrange the odds to cover themselves and tempt bettors into going against their own instincts.
For example, if betting on Manchester United to beat Burnley, you will get very badlow odds. To make any decent money, then, you’ll have to put down a huge wager this can still go wrong, either by Burnley pulling off a shock win at the Old Trafford Stadium, or the game resulting in a draw, meaning you lose a lot of money.
Betting on Burnley will get you some relatively good odds (but not so amazing that you could retire on the winnings) so you can place much less money on it – but then you’re likely to be throwing that money away, simply because the likelihood of Burnley winning is so remote. Over a period of time, then, gamblers tend to make too many mistakes and come out down overall.
In such cases, only a handful of people with a high level of aggressiveness would do so because personally (I am referring to myself) when there is a bet that is not very comparable, where there is a favorite club with small odds, I always skip the 1x2 and replace it with another bet where the odds are more feasible, such as BTTS or Over/Under. Under. This way, the bets we place remain the same in terms of the amount we've set, and even if the outcome doesn't meet our expectations, we won't feel the loss as acutely as we would with a larger bet, especially for a team that isn't ideally suited for betting due to poor performance, like Manchester United.
Such cases may indeed occur, but not all gamblers do the same, and I am not among them because the bets I place are no more than $5 (and even that is very rare) because I usually bet less than that in matches one session.