
Did you read this or you just copied and pasted it? If you actually read the manhwa, you'll know that Taegu isn't even trying to build an emotional connection with younger Yeongwoon. In fact, he actually avoids getting any closer to him because, as he said, "between the two of us, not even a shred of sympathy was allowed to exist". If he developed feelings towards Yeongwoon after he's all grown up, that's not grooming, but it is still weird. You can call out something weird without misusing certain words

So let's make a hypothetical situation, if your father's friend knows you since your 14 and comes to your house occasionally and plays with you eats with you jokes with you etc.., and suddenly when you're 25 he tells you that he's in love with you and wants a relationship you would be okay with that ?

Hey, I understand what you're trying to say. You're trying to call out Taegu's actions for having romantic feelings to someone he met as a kid because it is weird, we get that. But you're using the wrong terms. We're just trying to correct you here because you're throwing words around without seeming to know their true meaning
Anyone who ships yeongwoon and taegu after this chapter is simply a blind or an idiot ,, if anything romantic happens between them it would be a text book case of grooming and y'all are not ready for that conversation!