Less can come in many forms. You can have fewer things, you can do fewer things, you can use fewer things, you can focus on fewer things. But less isn’t just fewer: it can also be smaller. Small is often downplayed in this world of “bigger means better”. But small is beautiful, and often better.
Smaller suitcases (such as a small backpack) are easier to carry around, fit easier in overhead compartments, don’t require you to check luggage and worry about luggage not getting to the right destination, are easier to pack and unpack.