So, in your vision here... what do player characters who pick their intimate interests based on things like attitudes, personality and demeanour, rather than boxer-short anatomy, do?
I'm sorry, but for me this is a hard disagree to your suggestion.
Right now one issue is that everyone in the party all attempts to jump you at the same time, and, also, everyone, regardless of any other aspect of their personality, apparently thinks it's a good idea to jump into bed with someone they barely know at the end of an alcohol and post-battle-mortality fuelled party. That's definitely a problem. Exactly "who" asks you if you're interested is not.
That said: The tactful route that most games take in this regard, and which Larian are, at present, completely disregarding despite there being well established reasons WHY every other game does this... is that the player MUST give the first indication of pursuit, and it must be clear that that is what you're doing. Even for assertive companions/NPCs that will lead the romance, the player must give a clear flag of some sort first to let the game know that they are interested; this is like letting your DM know, "above the table", that your character is interested in someone, even though the character might not have done much to show it yet herself... Most video games handle this by way of a dedicated flirt dialogue line early on in the game, or at least prior to any major romance interactions, to signal that you want to pursue. It's not completely fool-proof, but it's at least functional... The game doesn't do this at the moment, and it should.
The other thing the game *could* do, if it isn't going to leave the first signal of intent to the player, would be to give you a clear and obvious conversation response that lets the propositioning character know that you're not going to be interested in them in that way - and the game MUST then accept and respect that with no further questions, and WITHOUT otherwise damaging the relationship, regardless of the personality and inclinations of the NPC; this might seem heavy handed, but that's because it's about the game being respectful to the player, and not about the characters involved. If you get upset by someone who doesn't match your intimate preference asking if you're interested, that's on you... people aren't psychic, and asking does no harm to anyone, as long as the game gives you the tools to let them know, and then respects your decision.
Tying what the game offers you to the Daisy is a fundamentally bad idea... although I'm personally of the opinion that the Daisy itself is a fundamentally flawed concept... or at least that it fails utterly at what it is attempting to do. No matter HOW or WHO I've ever played, it has ONLY ever come across as deeply creepy, unpleasant and unwanted. There is no allure, no temptation, no endearment at all... it's just gross, invasive and creepy at every level.
