I saw this as just a funny too, not really indended to "put down" anyone, but I did sense the frustration of being considered to be "mixed up/confussed, etc. because we have grey hair, are a little plump, and maybe don't walk as fast as we use too. So it really is a two way street. No young person should be considered "dumb" because they are young, and no older person should be considered "mixed up because they are older. There was a funny saying going around our office once that ended in "Don't open your mouth and remove all doubt"