I'm over 65, never retired, still working as an independent contractor, and make all I want. Added to that, my SS check is a BIG plus every month. However, I've put a lid on how many appraisal jobs I accept, because of taxes. I check my appraisal file numbers, and make sure I don't exceed the number of jobs I did the prior year. So, I know how much I'll owe the IRS every year, and that also depends on business deductions, travel expenses, etc. This has worked for me, since I'm in good health. Besides, I don't want to be sitting around, or joining some 'old ladies' club.
I checked out one of those, and hated it! I'd rather work from my home office, meet interesting people, and get paid.