What is SSI mainly used for?

Could you please elaborate on the primary applications of SSI, or Self-Sovereign Identity? I'm curious to understand how this technology is being Leveraged in various industries and use cases. Are there specific sectors, such as finance, healthcare, or government services, where SSI is particularly beneficial? Additionally, how does it enhance user privacy and control over their personal data? I'm interested in hearing your insights on the practical implications of SSI and its potential to revolutionize the way we manage and share our identities online.