double Lifetime() const noexcept;
double Fertility() const noexcept;
double Mutability() const noexcept;
double Lifetime() const noexcept;
double Fertility() const noexcept;
double Mutability() const noexcept;
Steering &GetSteering() noexcept { return steering; }
const Steering &GetSteering() const noexcept { return steering; }
Steering &GetSteering() noexcept { return steering; }
const Steering &GetSteering() const noexcept { return steering; }