What are the chances girls just wanted sex from these online dates and nothing more?

I went in tons of dates with girls I met online and never get a second date. I think a few really did want sex, but I didn't pickup on the clues at the time. My opinion has always been just because you don't have sex on the first date doesn't mean it can't wait until the next one. at least I wouldn't think they would be put off, but maybe I'm wrong

What are the chances girls just wanted sex from these online dates and nothing more?
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