Every once in a while someone will say they only need ten minutes for one good family image. I get why it sounds reasonable. We all have cameras in our pockets and most of us can snap something decent pretty fast.
But a family session is not about a quick snapshot. The first ten minutes are always the same. Tight smiles. Kids holding onto legs. Parents trying to look relaxed while wondering what to do with their hands. The energy is polite and nervous and a little awkward. That part is normal.
Give it time and the mood changes. Kids warm up. Someone says something funny. A snack gets passed around. Nobody cares about the camera anymore. People stop posing and start being themselves. That is where it all opens up. Not perfect. Not polished. Real.
If you want one safe picture, sure, ten minutes could work. But that is not what most families actually want. You want the ones you look at years later and feel your whole life inside them.
Ten minutes gets a picture. Time gets your family.