Why do my parents always email me at night time?

It's suspiciously always when they suspect that I might be out socializing that evening. If I don't respond to that email, they either send a second email about something else, or text or call me early the next morning, whereby they either ask if I'm at home, or pretend that they were calling about something else. Do I have a legit reason to feel claustrophobic in this situation? I feel like they're ensuring that I'm not staying the night at some guy's mansion, god forbid.

Why do my parents always email me at night time?
Why do my parents always email me at night time?
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