I do my best to discourage the idea of feeling sorry for missionary's families. These challenges make us stronger, and they give us experience in relying on the Lord at the same time. This is wonderful. But it is challenging for little ones, and we do well to have compassion on them in their weakness, like our Father has compassion on us. He knows our limitations. He has offered us rest in Him every day. I'm thankful I can do what He asks me, and trust Him to know what I need!
He shall feed his flock like a shepherd: he shall gather the lambs with his arm, and carry them in his bosom, and shall gently lead those that are with young.