Extremely possible for me:
I am 60 years old, and I have not dated for the past 11 years. I grew to love my independence and privacy. Doing what I want when I want, how I want, going where I want and so on and so forth without the hassle/trouble of trying to make a woman to feel okay with my decision or seeking their approval to do so.
I have had my career married divorced raised my kids by myself. Now it is the exact place and time for me to focus on taking care of myself and realizing all my dreams and goals without the relationship hassle, baggage, or troubles.
Having a living breathing human being in my life now would only interfere with my life honestly.
And if you're going to throw that in valid care stuff at me, I have done well enough where I would pay a live in-home health aid to live with me. I do not want nor need the emotional mess of a relationship to curtail my happiness. But good luck to you that can't live alone.