Model? This is how family photography really works...you can't schedule a Family Group of say 30 back to back with another similar group in most studios...you'd be overrun with 60 people in a space where the fire code wouldn't allow it.. your parking lot might not even be large enough.
If you want to sell a lot of retail photography, you have to know how the business works. That's how it actually works if your business is run like a business. After 10,12,14 days, you will have all sorts of orders backing up....you need some way to plan and handle the sets you shoot. You need to know if it's a MW-2C set or 2C set of proofs you need to look through....people call in over the phone, inquiring about their proofs, their orders, etc,etc.
When a woman says, "My husband and I came in," the person handling that telephone call needs to KNOW, exactly, what orders are NOT the ones to be bothered with.
This is just a way to run a real business that has say 5 or 6 people running the studio,and actually having a clientele of real people. You need to be able to schdule different kinds of sets...MW...a man and his wife....okay, Easy, Fast. FG-12, much more involved, usually a sibling group, 2 sisters and 1 brother, and their spouse, and 2 kids each, so a Family Group...but if you bring in this Family Group and shoot say JUST ALL group shots, and then let them walk out the door, well, there goes 90 percent of your money; it is not a family group ONLY, it is three,small modern nuclear families, with a history as part of an original, birth family. See that???
Nancy, born in 1960, her sister Bethany born 1962, and Chuck, born 1966...originally the Stone kids...now all married, each have 2 kids per spouse...you need to shoot the girls and their brothers ALONE, and sell that to them, and to their parents, who are now 80-ish. Then all the grandkids. And then each girl wants a shot of HER, and her hubby, and her and her buggy and their kids. So, two individual men, alone. And then, they want a shot of JUST their kids, so thats 2 - 2- 2 of the kids, and then they want ALL the kids ie "the cousins" whom are also :"the grandkids", for them, and for their parents, ie Nanna and Boppa Stone, Nanna and papa Wilson, and Nana and her second husband Wilson and one for Grandpa and Trophy Wife Whatsername.
So, the MW set, the man and his wife is easy, and there are three combos--Man, Wife, Mand and Wife together. Very simple. Decent sales potential. But it pales, totally, in comparison to a MW2c-MW2C-MW2C, which is what a family of two sisters and their brother and three spouses, and three sets of two kids each couple really is. Typically, this kind of a FG-12 situation involves one or two couple and their kids driving or flying in from out of town for a special occasion....if that special occasion is a premium time, you need to charge a lot more money because a simple couple of MW2C sets could KILL the opportunity to take on say, two or three much,much more-lucrative sessions with nine or ten times the money at stake.