I'm hardly at home when meals are prepared. However, when I am at home notice that my wife "plates" my children's meals first, then she would do mine. We would then sit to eat as a family. I've had friends who say that they plate there own meals first then the rest of their family afterwards.
I have neither a spouse or child. If I am serving family round the table, it would only be when there family members are visiting, such as grandparents and aunts. In that case I always serve guests first, then my dad, and my mum is usually serving with me, so serves herself.
I don't serve anyone. In our family we eat European style. All food is placed in serving dishes in the middle of the table and everyone helps themselves. Much easier because each takes what they want and can have as many helpings as they want. No waste and rarely any leftovers.