When you are at Soren's house......

 ....you learn to play with payloaders as we don't have any 'outside dolls.'

 .....you learn to play/ride on tractors as we don't have any 'outside dolls.'

 ....you learn to play with skidsteers in the dirt as we don't have any 'outside dolls.'

 .....you are crabby because we don't have any 'outside dolls.'

 .....you learn to use the wheelbarrow for rocks and dirt as we don't have any 'outside dolls.'

....but in the end it doesn't matter because it's just fun to play with your cousin!!! :)