Is this sweet/romantic or stupid and unrealistic? She is in her mid twenties and I'm almost 18...?

i am 30 years old and am not gay. but when i have 18 to 20 year old boys flirting with me i think its cute. because they go out of their way to impress me. but its only cute to me. who knows people are all different. she may be atracted. but its still best if you wait til your 18 and over.