""I don't really understand why anyone would want a spray tan either TBH.""
That's the same as not understanding why anyone wants to dye their hair.
I miss using sunbeds.
I was in an accident and got badly sunburned, before that I never sun tanned, only really used beds.
I like being darker than my colour.
OP, your reaction to grief is usual, but recognise that the research shows that being sunburned and heavily tanned in childhood is the biggest factor in skin cancer.
I worked in elderly care and it was common for men who had served in Egypt etc to have to have patches of skin cancer cut out. This is the group that made the statistics look so high.
It is a controlled risk, you weigh up risks and decide if you want to proceed, just like with that glass of wine or sweets for your children.
Most Cancers are lifestyle related, that is clear, but when it comes to "treats", everyone is in defence.
If people stopped taking the piss out of "bad" false tan, then maybe the use of sunbeds would die out.
It isn't easy or cheap to self tan, well.