Your wording is fuzzy.
I think love at first sight is really just a crush. Maybe the person who falls in love is just the type to fall in love easily.
But I personally believe in “love at first experience”. When I met my husband, I didn’t think much of him. I just walked up to him and asked him what he was reading, chatted for a bit, and went back into the office. Soon after, he asked me on a date. I refused, and he asked again a few days later. I decided to let him wine and dine me, and when we went out, we fell in love on the first date…
…And haven’t been apart for a day ever since.
So, it wasn’t love at first sight, but it was love at first experience. We had to experience each other to fall in love. Love at first sight is superficial at best.