How to install adblockers, how to detect fake download sites that give you computer aids? Show them how to use a VPN and choosing the right one (a true pirate must always choose a VPN with port forwarding capabilities, so you can still seed) I feel like this is all valuable info we all learned as pirates the hard way, and valuable information to pass on to our kids.
Absolutely, I would say whether you're teaching piracy or not, those are essential things that everyone online must know about; it would be unethical to allow your kids to go online without that protection.
Honestly I think I would find that one difficult. It essentially replaced conventional TV for me in the last 10-15 years. I use a privacy-respecting front-end so I'm never at youtube.com itself but if they killed it off I would find it difficult to adapt.