Free bets are often useful when you just want to try how the game works and how friendly the website is. It is a great opportunity to strategize and make gameplay for free, as a practice. However, I don't think there are bookmakers that still give free bets generously. Most free bets are offered to loyal clients and in promotions, so I think you'll have a hard time finding one now. But it's still possible, you just have to keep on looking. Although surely the winning prizes would be hard to withdraw. You'll have to undergo several processes and they will ask you requirements to be able to withdraw your prize such as undergoing KYC, which you can opt to do or not depending on if you are comfortable with it or not. So still, play at your own risk. If you plan to play for the sake of the prize alone, prepare yourself to be asked with various information. Otherwise, your time and efforts would all just be put to waste.