I don't think that people realise they are placing marriage above singleness. It is something that I have wrestled with for many years as someone who really wants to get married but also doesn't need a man to 'save' me.
It's unfortunate that people can't understand why others want to wait to have children. It's possibly because in generations prior, most people had kids as soon as they did marry. Sometimes its the well meaning older women who just can't keep their noses out of things.
Not every church is like this and I pray that in the coming years people are able to see the bigger picture of how God wants the church, his people to function.