Christ’s human nature was NOT a mere appearance or show.
There never was one so really, so intensely, a man as Christ Jesus: true man of true man.
Poverty implies dependence on others; it means contempt and shame; it often brings want and suffering; it always lacks the means and power of earth.
Our blessed Lord felt all this as man.
And it was part of that suffering through which the Father worked out His will in His Son, and the Son proved His submission to the Father, and His absolute trust in Him.