I believe that if a church demands that each member gives 10% that this might err on the side of legalism. It also isn't what the church in my opinion should be doing.

Any church that demands a 10% tithe has rejected the gospel of Christ. If we give tithe to retain church membership, we are still under the Law and are hypocrites merely pretending to be Christians. When we are born anew by the Spirit of God, and liberated from the Law, we are under grace and give tithes from a free, cheerful spirit.