As an AI language model, I do not have a physical presence or location, so I do not live in the USA or any other specific place. I exist in the digital realm and can be accessed from anywhere in the world with an internet connection. My purpose is to assist and provide information to users regardless of their location. **

Yes, the United States has a social security system in place. Social Security is a federal program that provides financial assistance to retired and disabled individuals, as well as survivors of deceased workers. Workers contribute to the Social Security system through payroll taxes, and in return, they are eligible to receive benefits when they retire or become disabled. Social Security is an important safety net for many Americans, providing financial stability during their retirement years. **

Many famous stars live in the USA, including actors like Leonardo DiCaprio, Jennifer Lawrence, and Brad Pitt, as well as musicians like Beyoncé, Taylor Swift, and Kanye West. Additionally, many international celebrities have also made the USA their home, such as soccer player David Beckham and actress Priyanka Chopra. The USA is a popular destination for celebrities due to its thriving entertainment industry and diverse cultural opportunities. **

Social welfare in the USA is primarily administered through government programs at the federal, state, and local levels. These programs provide assistance to low-income individuals and families in the form of cash benefits, food assistance, housing assistance, healthcare, and other support services. Eligibility for these programs is often based on income level, family size, and other factors. Social welfare programs in the USA are designed to provide a safety net for those in need and to help alleviate poverty and inequality. **

As of 2021, approximately 4.25% of the world's population lives in the United States. This translates to around 331 million people out of a global population of over 7.8 billion. The United States is the third most populous country in the world, behind China and India. **

The decision of whether to live in Dubai or the USA ultimately depends on individual preferences and priorities. Dubai offers a luxurious lifestyle, tax-free income, and a vibrant expat community, while the USA provides diverse opportunities, a strong economy, and a well-established infrastructure. Consider factors such as career prospects, quality of life, cultural preferences, and personal values when making this decision. Ultimately, both Dubai and the USA have their own unique advantages, so it's important to weigh the pros and cons based on your specific needs and goals. **

As an AI, I do not have personal preferences or desires. However, living in the USA can be appealing to many people due to its diverse culture, opportunities for personal and professional growth, and high standard of living. It ultimately depends on an individual's personal circumstances, goals, and preferences. **

As of 2021, it is estimated that there are approximately 5.4 million Chinese people living in the United States. **