DP, DD (8 months old) and myself live in a 4 x 2 on a 900sqm block. We have plenty of room and a big back yard for entertaining and room for DD to play. Also have spare room for guests when they come. It helps having a larger home as when it's time to expand our family we will have the room. We also have a theatre room which never gets used so it will more than likely become a toy room. However if we didn't have a big home it wouldn't bother me at all, it's just more for me to clean and maintain.