I do not believe that anyone needs to carry that much luggage unless if they're carrying specialist equipment, e.g. diving apparatus.

Personally, on trips, I can live indefinitely on hand carry luggage

22' Travelpro: 3-5 dress shirts + slacks, underwear, tshirt+shorts

Garment Bag attached to rollaboard: 1 - 2 suits (depending on how long I'm, staying in each place), ties.

Laptop Bag - laptop, charger, documents/brochures/loose paper etc.

Most people I know do the same, on short trips I don’t even bring the rollaboard. It's not hard to do at all.