[Esaias]

I think a lot of folks simply use the term "tithe", or " tithes and offerings", to simply mean donations to the church/ministry. So when these people hear "No tithe is taught in the NT!" they assume, or interpret, it to mean "No giving of money, no supporting the church/ministry, is taught in the NT!"

So, maybe a more productive approach (generally speaking) may be to promote unselfish giving of whatever resources one has available, and teaching the agricultural tithe of Israel as a example and principle of community support for 1) teaching and propagation of the Word, 2) orphans, 3) widows, and 4) pilgrims/foreignors visiting the community. As well as the concept of vows and obligations persisting across generations, the idea of representative ("federal") headship, land ownership and the landlord-tenant relationship between God and the nation, etc.