Fallingstar
I think if people enjoy it where’s the harm?
Is a huge commercial rip off but then so is Easter and Christmas and I presume adults know this and will either be happy to pay or perhaps find a different way to celebrate. We never really celebrated Valentine’s Day, I think when we were courting, back in the midst of time, we sent cards to each other but cannot remember doing anything else.
Would just advise against red roses, vastly inflated in price, and put a few bunches of daffs together wrapped in a red ribbon. Daffs are presently a £1 a pop in Lidl but you would need a fair few bunches, even so would work out cheaper.
I think if people enjoy it where’s the harm?
... here?
Would just advise against red roses, vastly inflated in price

Without wishing to come across as over-thinking this, I have an instinctive feeling that the commodification of such traditions / events, etc, could ultimately stifle human creativity and ingenuity - even sort of 'commoditise' raw emotion itself, IYSWIM?
I'm thinking of the occasion when my son, fifty odd years ago, came home from school clutching a 'plant-pot holder' he'd made for me for Mother's Day (I was a houseplant enthusiast). Maybe there's no time for such inventiveness now for people who have to work with their nose-to-the-grindstone?
My 'theory' is that as a society we are becoming dumbed-down by modern consumerism that places performative social-media culture above traditional family / community events.
Brutal Capitalism has us keeping our shoulder to the wheel, often with little reward, and has devised ways in which to organise our social and cultural events which we can now 'purchase' - win-win for the corporate world!
... but this is just a personal point of view, and I haven't given it that much thought... 