I have 5 ranging in age from 13 to 3. I don't have outside help, but am a SAHM during the week. I work week-ends, when dh is at home with the children. It's bloody hard work, between ferrying them to 3 different schools, taking them to music, cubs, football, gaelic (football), doing all the housework, making dinner, and so on. But the MOST difficult thing, is trying to give each of them the attention they need.
It's relatively easy when they are younger, but once they get to 6/7 years, they need more than you playing playdough, or baking or reading stories. They need help with schoolwork, and music. They need for you to know who's not talking to who at school and why. They want to go to town shopping with you on their own (and I don't mean the food shopping!), they want to have their say without 4 other voices interupting.
I agree with Katy, you don't have time to obsess about the small stuff, and they all have to pitch in which is good for them. They have more freedom because I can't be looking over their shoulders every minute of the day. BUT I wish I had more time to give each of them individually.
I don't think 6 is too many for Mozhe. Not yet at least( wait til they get older.) Or anybody if they are willing to put in the work that goes with them.
By the way, Katy am very at your hour to yourself every day.