Are you meant to do most of the sidequests to really get a feel for the world and factions? I just started the game and am doing the main quest. Im not really stopping to do the sidequests because they seem kind of "we need help with these monsters, kill them for us" kind of thing that don't have much to offer in terms of worldbuilding. So I've basically just been going from town to town trying to find the dude that shot me. Is this the wrong way to play or are the sidequests actually worth doing? I usually don't like to waste my time with silly mundane quests in games.
Are you meant to do most of the sidequests to really get a feel for the world and factions...
just do whatever you feel like doing user, that's the whole point
A lot of the sidequests will impact the ending for whatever factions they're for. Even small things like the fiends have an ending
Make a character, define them with faction alignment and strengths/weaknesses. Then do whatever you feel best suits their skills and person.
general rule of thumb is that if a sidequest sends you way out of town into another faction's territory or a follower comments on it then it's pertinent to an ending. that said there are endings for when you don't do those quests so you're not obligated to do anything or everything really. it's a role playing game user, you figure out what your character wants and pursue that. have fun!
The only sidequests I can even think of off the top of my head that are just "go here kill that" are the fiend bounty quests? which ones are you talking about?
You do them for fun and to level up and get other rewards
well for instance in novac, the sniper guy wanted me to go somewhere and clear out ghouls to help them. i had the bachelor perk though so i was able to bypass it. those kinds of quests seem kind of mundane to me, but maybe they have more of an impact than I think
Get the Old World Blues DLC, it will allow you to lobotomize your character and roleplay as yourself.
I found New Vegas to be boring and the map way too small.