You can refuse ad exposure on YouTube, it just costs money. Phone service and internet service cost money too, and government services use them extensively, yet

You can refuse ad exposure on YouTube, it just costs money. Phone service and internet service cost money too, and government services use them extensively, yet nobody suggests that phone and internet service providers be obligated to provide service to anyone for free at their own cost. The government does subsidize access in some cases, so the equivalent suggestion would be government subsidized YouTube Premium for those who can't afford it. But I think you'll have trouble convincing people that's a worthwhile use of government money vs. just letting people watch a few ads.