Loneliness is a major challenge when you retire. Once you leave work, you leave behind the majority of your social contacts.
The recommendation of hobbies and arts are typically single person activities.

A lonely retirement is like be in a minimum security prison with kitchen privileges

Research has found that loneliness has the same impact on mortality as smoking 15 cigarettes a day, making it even more dangerous than obesity.

How do you deal with being lonely?

Can you die of loneliness?

In my book “Retirement How NOT to end up Lonely, Tires and Bored” . I go over the steps to become aware of what give you pleasure and purpose and building a tribe.

A video on alternatives from accepting to being alone to stepping out of your comfort zone “How to deal with loneliness.”

During your career, you are given financial advice on saving for retirement. You maintain a 401K, set aside money from your family for your own future use.  You may even get help by engaging a financial planner to guide your investing.  You are told that hobbies and vacations will fill your days with happiness and purpose. It may, but not likely.