The inauguration might not be public out of concern for DJTs appearance in a public venue.
And, since they need to get to work, get the swear in done quickly and then.... to work. Fanfare for chest thumping is not needed in the national crisis facing us all. Save the money for the true respect for our US Military and the Blue Line of police facing the thugs who feel entitled to trash the country, again.
Remove the threat to our President. For that matter he SHOULD NOT be visiting Xiden (the scum demented enemy who inspired assassination attempts among many other actions, calling Trump fascist etc. Melania should make her case to Donald- “Im not going and YOU do not need to do. At all1”