Being old and single is not a sin or a defect. Everyone has their own life trajectory and choices. Some people choose to be single and enjoy being single, while others prefer to find a partner. I think this is a free choice of individuals and is not affected by social concepts and pressures.

However, when you are old and single, you may feel some pressure and anxiety, especially when everyone around you is married and has children, but you have no partner or family. This is a normal emotional reaction, but you don't have to be dominated by them. It is important to keep a positive attitude and make your life more substantial, interesting and meaningful.

I think single people can live well and have their own hobbies, careers, social circles and travel plans. In addition, singles can seek support and companionship from the community and friends, which is sometimes more meaningful than moping at home.

Finally, being single should not be regarded as a burden, but a part of life. Don't let anxiety and stress control you. Learn to accept yourself and your choices and face the future with a positive attitude.