Sex as just another way of communicating?

[emilynghiem]

Sorry I don't get this logic or conclusion:
"It’s time to give up the notion that sex is a prize and your mate needs to earn it. If you are an adult – sex is not a prize. It’s a totally normal way of communicating with someone that you are into. If you are dating someone who you think would judge you for sleeping with them on the first date, you’re probably not a good fit anyway."

Dating Advice - Sex On The First Date Doesn't Ruin Anything

So why is this a justification for having sex on the first date?
If sex is not a reason to judge someone, then don't use it that way!
That doesn't mean to have sex, it means not to judge people by this!

????

Sorry but you can communicate in other ways besides having sex with someone.
I guess I'm old school if I don't understand treating sex this casually,
as just another way to get to know someone? Shouldn't you do that before having sex?

What about someone's sexual history or making sure they aren't hiding other relationships?
Sex first, ask questions later, what is this?

I think I would flunk out of school if this is what is taught in sex education!
I would laugh but I fear for people who really think like this, seriously!