Women very well do approach guys in bars and clubs. That's where I got most of my action back in the day. Never once did I initiate, or get used for attention. I only ever initiated twice in my whole life, but had tons of women. It's all about looks in this respect. If women find you "hot", or whatever - they WILL approach. Always. Even to just talk (though that's just to break the barriers down).
To the OP: Low self-esteem is the worst thing ever. I was in the same boat for a long time. Simply refused to believe anyone could be interested, and sabotaged like you wouldn't believe. Everything was negative, and based off fear and insecurity. Chumped out, was oblivious, pushed everyone away. Horrible position to be in. Self-esteem is a must. Never hate or doubt yourself, or you'll hate and doubt everything. Not a good way to live.
To the OP: Low self-esteem is the worst thing ever. I was in the same boat for a long time. Simply refused to believe anyone could be interested, and sabotaged like you wouldn't believe. Everything was negative, and based off fear and insecurity. Chumped out, was oblivious, pushed everyone away. Horrible position to be in. Self-esteem is a must. Never hate or doubt yourself, or you'll hate and doubt everything. Not a good way to live.