Buying cryptocurrencies in Brazil can be advantageous, but it depends on several factors. Here are some things to consider:

1. **Regulation**: The cryptocurrency market in Brazil is growing, but it is still relatively new and there may be regulatory changes. It is important to keep up with the laws and regulations that may affect your investment.

2. **Fees**: Transaction fees can vary between different platforms and exchanges. Compare the purchase, sale and withdrawal fees to find the best conditions.

3. **Volatility**: Cryptocurrencies are known for their high volatility. This can mean big profits, but also big losses.

4. **Access and Liquidity**: Brazil has several exchanges that allow the purchase and sale of cryptocurrencies with ease, which facilitates access and liquidity for local investors.

5. **Taxes**: Earnings from cryptocurrencies in Brazil are subject to taxation. It is important to keep a detailed record of transactions and be aware of tax obligations.

If you are considering investing in cryptocurrencies, it is recommended that you do your research thoroughly and, if necessary, consult a financial expert or accountant to better understand the risks and opportunities.