REUTERS - June 21 - The one-child policy in modern China piles on even more pressure on children to get on with the business of producing offspring. Matchmaking events are increasingly common. TV dating shows such as "If You Are the One," in which men have 20 minutes to sell themselves to 24 female guests, have become wildly popular. People have become more aware about matchmaking," said Sunny Ouyang, the founder and CEO of Shanghai-based matchmaking company 5QChina.com. Most of her members are white-collar workers in their late 20s or early 30s.