Starting to invest in cryptocurrencies with $100 is possible, but caution is necessary. First, it allows you to learn the basics of trading and understand the market dynamics without risking significant amounts of money. However, small investments limit potential profits. It is important to use risk management strategies such as diversification and stop losses. Additionally, choosing reliable exchanges and avoiding emotional trading are crucial. Overall, $100 can be a good starting point, but decisions should be made carefully, considering long-term prospects.