Well that and because the only way to do such an action is to either kneel before them, or place them on such a high seat that its effectively the same humbling act.
Its why despite shoe shining booths being such a common thing at airports, the only people using them are the prideful and vain. The people who expect others to kneel before them.
That's also a reason that washing another person's feet is considered on of the most loving and humble things a person can do
Well that and because the only way to do such an action is to either kneel before them, or place them on such a high seat that its effectively the same humbling act.
Its why despite shoe shining booths being such a common thing at airports, the only people using them are the prideful and vain. The people who expect others to kneel before them.