Do you need to offer a cooperating buyer’s agent commission? YES
Why? because that’s how the MLS® System works.
Buyers are entering into contracts to be represented by their REALTORS.
By offering the recommended cooperating buyers agent commission of 3.5% on the first $100,000 and 1.5% on the balance plus GST you remove another negotiating session prior to even a showing of your home and let the buyers fall in love with your home and know they don't have to pay their REALTOR above your asking price. Include these commissions in your asking price and negotiate the purchase price.
This will save you Time, Money and STRESS and let everyone focus on your HOME.