I have been going to this place for years now, goo...

I have been going to this place for years now, good food, fair prices. My Mom who is 91 years old just loves their Carne pizza, we always enjoy coming here.
However Saturdays visit was enlighting. We have always been able to sit at a table of our choice however, (already seated, coats off) the server asked if we could move to a table for 2 as they where very busy. I understand this, we moved.
My issue is, shortly after 2 young men came in and sat down at our previous (4 seater table), the server did not ask them to move. And there was a table for 2 available right beside us.
Honestly I was disappointed as at seemed there 2 different standards dependant on gender and age. Not cool.