How common is it for a man to regularly have women cold approach him?

I used to think it was something common, but from what I'm learning, many men have never had that happen to them.

I'm not just talking about coworkers coming up to me and asking me if I'm single and if they can have my number, I'm also talking about bartenders (whom I never flirt with), random women at convenience stores/grocery stores, etc. I've had 4 women cold approach me in the last 6 weeks and I don't leave my house much. Rarely go to bars, etc. I mostly avoid nightlife areas.

I'm 6'2" and I look like Marlon Brando when he was in his late 20s (I'm 32). Does that have anything to do with it?