Why doesn't Bai Longwang let Serina Liu buy shoes?

Reasonable consumption, not extravagant consumption, spending money on the cutting edge, not excessive waste, rational use is the truth, is the king.

Buying shoes is only one aspect. Maybe he emphasized not to pursue external material excessively. You will lose money when the moon is full. At the same time, you will accumulate more blessings for continuous replenishment.