Times had developed, and human desires had grown along with their expanding horizons.
Whether in big cities or the countryside, the environment and people's thoughts were almost changing every year.
Take marriage and having children, for instance.
In the fifties and sixties, villagers only needed a place to live to welcome a new bride, and as for the dowry and bridal possessions, slaughtering a pig to mark the occasion would suffice.
In the seventies and eighties, the house could be subpar, but requirements gradually included things like bicycles, television sets, sewing machines, and tape recorders.
The nineties were a transitional period. On top of the three big items and tens or hundreds in the dowry, there was an additional requirement of a big tiled house.
But now, although it's just been one or two decades, the necessities for marriage have turned into apartments worth hundreds of thousands or millions, cars worth over a hundred thousand, and similarly costly dowries.