sometimes you can do this for 3 reasons.
1. Their queen is in a great position. Some are more skilled with their queens, and some don’t know how to punish an early queen. Trading then to get rid of worrying about it can be useful sometimes.
2. Prevent castling. Have you ever played without castling? You king is in the open after a heated middle game and your rook can’t get out without wasting 10 moves. If you sent your opponent castling rights, you can stipple them is middle game and they will be less prepared for endgame. However, it does mean you are both robbed of a powerful piece
3. Lower skilled players may over defend their queen. Sometimes, your opponent can be overly protective of their queen. If you know your opener is like that, you may just be able to convince them give up their defense for their king and shift it all to their king.
I hope you can understand when to do it and when to not. Note, it is not always viable. Compare options and how powerful it is at the moment and for your future tactics
In my experience, as my observation that most people are quite cowardly, the same holds true in chess. When I am pressuring under a few moves with queen, immediately, a move is made to exchange the queens. This grinds game to a halt where all the other pieces face off in a game of attrition and then eventually the other person scrambles to queen a pawn. This is akin to forcing two people in a duel to give up their guns and then scrambling for a gun.
That's not cowardly, that would just be the best move in the position lol. When under attack, seek to trade off your opponent's attacking pieces, no?