At sixteen, he's going to be moving out very, very soon. From his perspective, that's delightful freedom. (No more stupid chores!) But he also is going to have many more responsibilities once that time comes. It may be time to make the conversation not just about obligations to a household, but about practice for being an adult.
An adult really has three basic choices:
- Let the garbage and laundry accumulate.
- Pay for a maid.
- Do your chores.
The first one will negatively impact his social life, the second is absurdly expensive, and the third... is free and creates a tidy home. (To me, it's kind of a no-brainer what to choose.)
But at any age, a discussion of chores can also be founded on the idea of responsibility to the household. He gets a place to sleep, uses your utilities (gas, electric, internet, phone), eats your food, is given clothes, etc.
I know one family that treats chores sort of a way for the kids to "pay rent". They sit down and run through the actual cost of raising a child (his share of utilities, mortgage/rent, food bill, and so on). Is he able to pay you $x per week to meet all those expenses? Would he prefer to do chores every now and then instead?
I personally prefer to turn that idea upside-down a bit: point out what I am providing (shelter, food, clothes) and that I will always happily do that as long as they need, but I'll "pay" a bit extra if they step up and contribute to the household. That payment is in goods and services (shelter, food, clothing) rather than cash. Clearly you won't kick him out for refusing to take out the garbage, but you can reduce the privileges he gets above the basics. No allowance, no access to the household wifi, no phone, not allowed to borrow the family car... It gives me some level of control, and way to remind them when chores need to be done. (Oh, you want to play video games? Please confirm that you've done X, Y, and Z...)