The challenges associated with decentralized file sharing include scalability issues, consistency problems, user adoption complexity, security risks, and regulatory uncertainty.

First, as the network grows, scalability issues become more pressing. If increased participation leads to slower file retrieval times and higher bandwidth requirements, it may result in a poor user experience.

Additionally, consistency and coordination issues can arise in decentralized systems. Without a central authority, maintaining uniform file versions across the network can be difficult, potentially leading to conflicts and data inconsistencies.

Complex interfaces and user adoption present another hurdle. Decentralized file-sharing platforms often have a steeper learning curve compared to centralized alternatives, which may deter consumers unfamiliar with P2P networks or blockchain technology.

Furthermore, security vulnerabilities persist, especially in the early stages of decentralized file-sharing deployment. As these systems become more widely used, they become targets for various types of attacks, making the continuous development of robust security measures necessary.

Regulatory uncertainty is another challenge. The adoption and long-term viability of decentralized file-sharing platforms may be influenced by the evolving legal landscape surrounding cryptocurrencies and decentralized technologies.