The trump decides that money is obsolete. He decrees that sexual favors is the new medium of exchange. Why would he do that?

He sez Article II of the Constitution sez he can do whatever he wants to do. Sez he. Yes he does sez that.

Since taking sexual favors was so prominent in his far recent and most recent past why not?

He is the president. He can do whatever the he** he wants to do. WHY NOT THAT?