So, do you have the courage to do that?
$50 has different values to different gamblers in different locations of the world. The song gamblers $50 is a very small amount that they can risk due to the value that their currency has but to others trying to bet or gamble with $50 will be irresponsible gambling to them, and it would mean that they are using more money to gamble than they can afford to lose which is what is being advised against in this forum from one gambler to another gambler. Bet $50 if you know that you can risk it and do not try it if you know that you cannot risk that amount.
I do agree with you for saying gamble with what you can afford to loose, we all know gambling is a risk and a 50/50 chance so it's either you win or loose but I really believe in high stakes less odds, this means that someone can choose to gamble with $20 and pick so many options just so he/she can win a huge amount of money and that makes it almost impossible because the risk is always too much due to the many games you play.
But I believe in high stakes and fewer games because it really has a very low risk, for example using a $100 to win $300-$500, with this you find out that you win so much than you lose because the percentage of you losing that game is very low. The major thing that makes people lose a lot is greed, they just want to win millions at a go so please we should all learn to gamble responsibly and with strategies