There are several limitations and restrictions associated with using Bitcoin. Firstly, the scalability of the Bitcoin network is a major concern. The limited block size and long confirmation times make it difficult for the network to handle a large number of transactions efficiently. This can result in delays and increased transaction fees during peak periods. Additionally, the volatility of Bitcoin's price poses another limitation. The value of Bitcoin can fluctuate significantly within short periods, making it risky for everyday transactions and challenging for businesses to accept as a stable form of payment. Furthermore, regulatory issues also pose restrictions on using Bitcoin. Different countries have varying regulations regarding cryptocurrencies, which can limit their usage or even ban it outright in certain jurisdictions. Moreover, the anonymity associated with Bitcoin transactions has raised concerns about its potential use in illegal activities such as money laundering or financing terrorism, leading to calls for increased regulation and oversight.