I never attended a private school and am from a working class background. We have just enrolled DS in a lovely pre-prep that he adores and we've been invited to "an evening reception" that involves "drinks and nibbles". No further information to gauge and no dress code given. What on earth should I wear to this? Is it a business-wear situation or a formal evening wear or would jeans be ok? Cocktail dresses or evening gowns or should I just rock up in my gym wear because that's what everyone wears to pick-up/drop-off? What about for DH? Jeans and a casual shirt? Or a work suit? Or an evening suit? (Yes, I'm overthinking this).
Anyone attended one of these kind of events or work in a private school that has these and know what attire is appropriate? I feel like, even if I ask the school, I'll get a response like "formal wear" or "smart-casual" which doesn't really actually help me at all.