shoot for?

No, not a photo. What you shoot for is a target or goal. Remember that some targets are missed, and some goals are elusive, but that's the idea of the phrase.

Then, what's the meaning of the sentence here. It still buffles me.

Smoking on the street would be a goal.

The speaker is describing a kind of personal rebellion. Perhaps it is a young person. They are saying that though they are still afraid to smoke in public, it is a type of rebellion that they would like to attempt, it's something to shoot for. It would be a rebellion like wearing high heels and using swear words like damn if you did something you didn't like, eg, breaking a fingernail.

Examples of "Shoot for"

I don't think I'll ever be able to become a doctor but it's sure something to shoot for [something that is desirable to obtain/become].

Girl to a girlfriend: I don't think that Billy knows I exist but I hope to change that because becoming his girlfriend is really something to shoot for.

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I'm sure that it was just a typo, Nancy.

It still buffles me. --> It still baffles me.