People rely on add-ons because DEVs allow them. No one cares about having an easy win only. Getting gear is fun... up to one point. It's not as if people would be flying through content just because they have add-ons. It doesn't do the fight for you.
As for raiding guilds forcing you to have add-ons, why did you join in the first place if you don't agree with the policy :/ I mean you have guilds out there that play casually without "forcing" their members to use addons, read guides, and so on...