If social media platforms can identify certain demographics, like those who smoke cigarettes, then why wouldn't the government use that to (e.g.) target 'Would

If social media platforms can identify certain demographics, like those who smoke cigarettes, then why wouldn't the government use that to (e.g.) target 'Would you like help to quit smoking?' program availability ads to them? * https://www.ontario.ca/page/support-quit-smoking https://www.ontario.ca/page/support-quit-smoking * https://www.canada.ca/en/health-canada/services/smoking-tobacco/quit-smoking.html https://www.canada.ca/en/health-canada/services/smoking-toba...