This is less about seat count and more about what the vehicle can still do after installation

Many groups begin by counting passengers and checking whether the boot closes.

With two child seats, the stronger question is what happens to aisle access, seat movement and quick daily retrieval after those seats are fixed.

A 7-seat MPV often loses both the aisle and the flex space at the same time

Once the second row is partly locked by child seats, the MPV can lose much of its most valuable adaptability.

The cost is not just slower row-three access but a wider collapse in how the whole cabin functions.

The advantage of a 9-seat van often becomes obvious only after several days

A 9-seat business van may not look more elegant on paper, but it usually preserves aisle logic, a buffer seat and some temporary storage margin.

For a family repeatedly handling jackets, snacks, bags and luggage, that spare capacity matters a great deal.

A 7-seat MPV works only when the load is clearly reduced

If the luggage volume drops meaningfully and the child-seat footprint is lighter, the MPV can become acceptable.

Otherwise it often becomes a plan that looks fine in theory but keeps creating small operational problems on the road.