It was always possible to put wheels on luggage. It wasn’t a vast engineering problem, it was just a social thing.
If a woman was travelling circa 1900, she was expected to have a man carry her bag. Either she was travelling with a man or she was supposed to have a servant/porter carry it for her. A man was supposed to carry his own luggage. “Women’s Liberation” and the drop in airfares came around the same time. Suddenly there was a market for wheeled luggage.
Think about this.
It was always possible to put wheels on luggage. It wasn’t a vast engineering problem, it was just a social thing.
If a woman was travelling circa 1900, she was expected to have a man carry her bag. Either she was travelling with a man or she was supposed to have a servant/porter carry it for her. A man was supposed to carry his own luggage. “Women’s Liberation” and the drop in airfares came around the same time. Suddenly there was a market for wheeled luggage.