The adoption of Bitcoin via the Lightning Network protocol relies on several key factors:

1. Scalability: The Lightning Network allows for thousands of transactions per second, far more than the main Bitcoin network. This makes it capable of handling a high volume of microtransactions, encouraging broader adoption in contexts where low transaction fees and fast confirmation are essential.

2. Reduced Transaction Fees: Transactions on the Lightning Network have much lower fees than those on the main Bitcoin network. This makes Bitcoin more attractive for small transactions, such as purchasing goods and services on a daily basis.

3. Improved User Experience: For mass adoption, it is crucial that using the Lightning Network is simple for users. Wallets and platforms that integrate Lightning must offer an intuitive interface, reducing technical barriers to entry.

4. Interoperability and Integration: Integrating the Lightning Network with existing payment systems, e-commerce platforms, and financial services can encourage its adoption. For example, businesses could accept payments in Bitcoin via Lightning, making its use more common.

5. Liquidity Growth: The more channels that are open with good liquidity capacity on the Lightning Network, the easier it is to process transactions of all sizes. Increasing liquidity is therefore crucial for adoption.

6. Institutional and Regulatory Adoption: Support from financial institutions, combined with a clear regulatory framework, could encourage the adoption of Bitcoin via the Lightning Network by a wider audience, including businesses and consumers who are not yet familiar with cryptocurrencies.

7. Community and Education: Raising awareness among the public and businesses about the benefits of the Lightning Network and providing educational resources for its use is essential to overcoming mistrust or misunderstanding.

The adoption of the Lightning Network will therefore depend on the combination of these factors, each playing a key role in enabling Bitcoin to become a more widely used currency for everyday transactions.