I think if your own children turrn away from the Lord why not adopt or foster or mentor others who never had christian parents to teach them. If you need help sometimes you actually need to employ someone who might be glad of a pay packet and something to do. If you cant afford to pay anything that then just provide a meal or something, or some sort of thankyou.
A couple of weeks ago, I went to a church meeting a couple of hundred miles away without my wife because she knew I really wanted to go and she could not go. We have some close friends who would keep an eye on her when I am too distant to respond effectively to any real emergency. But... as I was on the road driving toward my destination, our youngest granddaughter [to be 17 in December] called me on the cell phone expecting to find both of us at home. I told her to call her grandmother and she did. She drove the 50 miles from her home to ours, bought lunch for the two of them and they spent the day together. That is the kind of thing that thrills me. My wife, needless to say, was overwhelmed with joy. Give God the glory!