Is it okay if I don't really want to be there for all the funeral stuff?
Why do you not want to be at the funeral?
The people in general are depressing.
Although funerals can be a difficult thing to attend, it's rude not to attend a funeral of someone that you know. Everyone at the funeral is having similar feelings as you, but they are showing up to pay their respects to the deceased and the family of the deceased. Even if you only go for a little bit, you should show up so the family knows you cared.
What a drag, why am I considered bad for not going.
Someone passing away should be given the time and respect for a proper burial. If you can't spare a little consideration to show others that you care, then they aren't going to show any care for you. Be kind and go through the formalities at least.