If you want to play in a Cardano casino but don’t have any ADA yet, there are several ways to buy the token. There are some light-weight wallets that allow not just storing but also buying crypto with your Visa or MasterCard. Atomic wallet is a great example. With its help you can easily buy ADA and it will take only a couple of minutes. However, they have high commission fees (5% with minimal 10USD fee).
If you want to buy and sell cryptocurrency with lower commissions, there are multiple exchanges for trading crypto. However, crypto exchanges will require an ID check before they allow you to withdraw any funds.