In your shed example, a builder could contact you and negotiate the price (perhaps the $100 price you set is completely unrealistic). That's not possible with Uber - there is no price negotiation - only declining/accepting a ride.
Similar argument for changing toppings on a cake - a caterer can negotiate changes to the cake - an Uber driver has no such flexibility.
Regardless, given corporate (human?) nature is to leverage any power differential to self-benefit, it seems reasonable that regulations be interpreted in the most protective (of the party with less power) manner possible.
Similar argument for changing toppings on a cake - a caterer can negotiate changes to the cake - an Uber driver has no such flexibility.
Regardless, given corporate (human?) nature is to leverage any power differential to self-benefit, it seems reasonable that regulations be interpreted in the most protective (of the party with less power) manner possible.