[adolph]

Taxes also apply to services and information, not just goods. I just checked some invoices to double-check my recollection.

You have made a claim that age gating some online services is an "arbitrary idea." I don't see how that is different from taxes at all. Taxes are likewise an "arbitrary idea." Taxes are likewise a societal control measure.

There is no need for articles to explain a very straightforward truth. If you are unable to make the case for something, claiming unspecified writings elsewhere doesn't get you any further.

[trinsic2]

You are splitting hairs. Done. I have given you enough information that this is completely different.

[adolph]

Please do stop and reconsider your epistemology. You have provided no information, only unsupported assertions. You also made a claim about taxes that was clearly untrue since they apply to much more than physical goods.