Well, I was made redundant into early retirement in my early 50s along with thousands of others in my company. It didn't take me long to realise that women in their 50s, no matter how well qualified, were unemployable so I had to make a new life.
I took my professional skills to the charity sector and took on voluntary work that enabled me to use those skills and worked for that charity for 10 years, even going back to paid work with them to cover maternity leave.
Retirement, when you have a pension, whether state and/or private, gives you so much more choice than employment. It is what you make it. Work, if you choose to continue, or, perhaps, even need to, nevertheless need no longer be full time or demanding. Voluntary work is so varied and, if you want to stay home and dedicate your time to hobbies, or a mix of all, you make the decisions.