I understand that monitoring and keeping people in check, and perhaps you're right that there should be a physical barrier between certain systems, however there's still nothing stopping bad actors from infiltrating in these systems. I personally think ads should be obliterated, as they're simply shallow and cheap methods of manipulating people; Presidential candidate Andrew Yang's plan is to tax ads higher in his VAT strategy than other things, progressively increase it over time, basically as a mechanism similar to a carbon tax countering pollution that's bad for us. Tesla spends no money on advertising, the word of mouth and media attention they get is all earned - meanwhile other vehicle manufacturers compete through emotional ads spend money which increases the cost of the vehicles, perpetuates the ad industrial complex, and to some degree limits people's depth of critical thinking for their buying decisions re: the emotional manipulation of ads bombarding them to build a good, relatable feeling, familiarizing them with specific products to make it feel like a safe, good choice.