For me, it's situational. I tell most folks I'm retired and that's the end of it. For some of the older, nosy folks in the neighborhood, I tell them I work from home. We have lots of business owners and home workers, so it's easy to blend in.
I can certainly relate to the younger folks resenting you, though. Currently, we are in Mexico with two other couples. One of them can't fathom that I have no reason to work...and I've known them for 20+ years. If THEY don't understand how I got here, most people won't. I shouldn't be surprised that they are also getting ready to get a second mortgage on their home to do some renovations and seem perfectly content to work 5 more years and not take a 'real' vacation for 3 years for the improvements. As you might guess, they will NOT be on our next getaway.
Sent from my mobile device so please excuse grammatical errors.