Simply put, apologetics is being able to explain what you believe. We believe being able to explain and present sound arguments for our faith is an essential part of the Christian walk.
Jesus spent his time with sinners. He came for those who needed him. We too should make it a point to be around people who need Jesus and “let your (our) light shine before others” (Matthew 5:16).
This world desperately needs Jesus and for those who represent Him to represent Him accurately and to be informed about our faith.