It is too much age gap for a 27 years old to date a 19 years old?

I thought she was at least 21, turns out that's not the case and it feels a little weird.

I'm not hurting for it that much as I have other casual girl friends, but I have misgivings stopping seeing her over this.

It is too much age gap for a 27 years old to date a 19 years old?
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