when i was single, i didn't get the appeal, but i didn't hate it, either. now that i have a girlfriend, i do enjoy it to a degree. we're long distance, so there's no guarantee we'll be together for the occasion, but we try to line it up or at least get close. we don't go to dinner or anything, and it's just a normal day for the most part, but we do get each other gifts and a card. last year, i got my girlfriend two funko pop she liked, including a pride hello kitty, and she sent me this cute white rabbit plush holding a sweetheart that says "i love you", and it sits on the end of my bed in the middle of all my other plushies. i don't think 'expecting' gifts, especially from someone you love, takes away from them at all. usually, we don't go with the more valentine's day themed stuff, so higher prices aren't an issue, and neither of us are particularly bothered about flowers since they're pretty expensive for something that dies within a week, so it's not exactly a dent in our wallets either. the only thing i hate about the holiday is how heteronormative it is. trying to find a good same-sex themed valentine's day card is a nightmare, especially one for wlw. there's like one small section with 10 cards, most of them pretty crappy or simplistic, and then three whole rows of gendered animals for straight couples. makes me angry every year without fail lmao.
also, the whole "class exchanging cards" thing is non-existent here. i've never heard of a primary school that's done it, although i'm sure there are some, and i think it's weird that america (and canada) make little kids gift each other valentine's day cards when they cry about how same-sex couples are inappropriate for that age group lmao. in secondary school, you'll just give a card and/or gift to your s/o if you have one but, like, it's a private thing between you and them and might not even necessarily happen during school.