Is Tor Browser supposed/meant for daily day browsing? (watching youtube, news, stuff...)
Tor can be used for anything, may it be leaking secret documents or browsing YouTube. From my experience using Tor for everyday browsing is unnecessary because you can use a VPN (Virtual Private Network) which is faster than Tor. Also the No-script add on will block Youtube from playing unless specially configured. So, I don't think it necessary to use Tor for everyday because there are better solutions out there.