@WoWsers16 it really IS a 'crap gift' for teachers...or for ANY collective group of people (you can take out the 'teachers' part if it helps you to visualise what is happening in this situation!)
In my primary school there are 16 classes (it's a big school). We have 3 classes with job shares and 4 with male teachers. We range from our 21 year old NQT to the oldest teachers in their 60s and every decade in between. I imagine this scenario is similar across most workplaces (except the male:female ratio might be different).
Every single one of us is different! I genuinely can't imagine that our male colleagues would embrace the 'spa day' idea at all! (Open to being wrong,but our 4 would definitely not!)
Personally, as I've already said upthread, this would be hell for me...and I wouldn't go! So that's at least 5 'spa day' vouchers wasted in my workplace immediately out of the 19 staff eligible for this gift. But I won't be the only one of the other female staff who hate the idea...there will be others!
It's way too personal a gift...you have to know someone well to gauge this sort of thing!
Hence...crap gift for ANYONE that you don't know!!
It's not being ungrateful either, before you wade in on that...it's about knowing that people like the OP are under this awful pressure to spend money they can't afford, on something that ultimately is going to be wasted...because it is ill thought out and (honestly?) inappropriate.
So no, 'most' teachers (people!) would NOT enjoy this gift...stop projecting! And even the fact that 'some' might, let's say half might...it's still crap, as this is being bought for ALL the staff 🤷♀️