Because I'm Wrestling

"Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. When they saw him, they worshiped him; but some doubted. The Jesus came to them and said, 'All authority in heaven and on earth has been given to me. Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.'"
- Matthew 28:16-20

"He said to them: 'It is not for you to know the times or dates the Father has set by his own authority. But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.'"
- Acts 1:7-8

"The apostles left the Sanhedrin, rejoicing because they had been counted worthy of suffering disgrace for the Name. Day after day, in the temple courts and from house to house, they never stopped teaching and proclaiming the good news that Jesus is the Christ."
- Acts 5:41-42

"Jesus went through all the towns and villages, teaching in their synagogues, preaching the good news of the kingdom and healing every disesase and sickness. When he saw the crowds, he had compassion on them, because they were harassed and helpless, like sheep without a shepherd. Then he said to his disciples, 'The harvest is plentiful but the workers are few. Ask the Lord of the harvest, therefore, to send out workers into his harvest field.'"
- Matthew 10:35-38

So here is (are) my question(s): is global mission work a non-negotiable for a believer? Is it something we should do because we're obligated to share the Gospel, or is it something we should do because we have been prompted by the Holy Spirit to serve in a specific part of the world? Is being "salt and light" in our day-to-day lives enough?

I think that since we have a three year old, I've had the mindset that my primary mission field is in my home...that this is just not the "season of life" for me to serve overseas on even a short-term basis unless I am prompted and led by the Holy Spirit to go. But am I wrong? I recently heard someone say that making excuses about why we can't possibly serve globally is just putting up smokescreens...because sometimes the need dictates the call. I see what the person is saying...but I don't think I agree, necessarily.

I'd love to know what y'all think.