Sadly this mom was serious and sadly this is the stance some churches can have as well. Anytime a church or Christian says “we don’t need to do outreach” is the day that church needs to seriously re-evaluate their ministry and perhaps read the bible. For the individual I would just ask to please back that statement up with scripture. Outreach is a necessary thing for the church to be doing. The church or individual that makes a statement like this is the person or church that is so scared of the world surrounding them that they have become socially retarded because they never leave their Christian bubble.
I think of how Jesus was in scripture, he would have no problem hanging out with other Christians….as we should. But, Jesus also flowed very smoothly among the unsaved with such grace and love that it was a beautiful thing.