Increasing the risk isn't always worth it because it's 50/50, that best way to gamble is always to stake low, you never can tell if you would actually make profit of lose. But here's the thing that people don't talk about often times, even though you staked low and it turns out that you still ended up winning, the bright side is that you didn't lose and you made profit. The reason why people regret why they didnt stake higher is just greed
A common disease among gamblers is that when they win a bet with a small risk, they regret why they did not bet more, and when they bet with a big risk, they feel disappoint. In such a situation, it is better to manage gambling by placing low risk bets. Because winning and losing in gambling are uncertain. If there is luck, then the gambler will be happy. One should not make one's gambling Unenjoyable by placing high risk bets. When gambling, greed will play negative role, which is why it is best to be able to gamble while keeping greed under control.
You are right mate, a responsible gamble will only stake with the amount that they know is very much comfortable with them, so that if they lose the bet it won't cause them emotional problem. Gambling produces a very uncertain result and knowing that, we should only have hope for the result to be positive and also risk the amount we can afford to lose because taking so much unbearable risk is very bad.