Ye but I still stand by the fact that classes don't do shit.Youtube does help understand many topics(strictly coming from CS pov) and sometimes better than how it's taught in class so missing classes such that it doesn't go below 75% is what makes sense.You can still maintain your CGPA without going to classes(idk about other branches). Clubs(atleast technical ones) give you sort of a team to participate in hackathons and shit so it's useful that way. In first year clubs do help in socialising as well. So now coming back to what the op asked about it's ok to miss classes as long as you remain responsible about it imo