Why do we have to label our relationship?

Some people can get confused about how serious or committed their partner is to them, so putting a label is like a "security feature", where both people feel comfortable with that label. Humans naturally need to define or understand things, and this is just part of that need. Sometimes, however, labels cause extra stress on the relationship when one partner is not comfortable with it. When both parties are secure in themselves and have a strong trust foundation, then both can feel comfortable with or without a label.

Labels can make it easier for people to understand and explain but you don't have to :) Just do what makes you happy :)

Some people like to label their relationship so that they know where they stand. But honestly you don't have to, it's completely up to you.

You don't have to. Labeling it may not make it a sure thing. If you feel more comfortable just knowing, and not naming, it could be better for everyone involved by taking pressure away.

I don't think you necessarily have to label it. I think you could choose to label it however you'd like, or not label it at all.

You don't have to, it offers some people security though if they want to feel like you won't sleep with other people and labels help do that

As humans we tend you label everything we see. The sky is blue. That is a black car. Unfortunately that seems to creep over into our relationships and emotions sometimes. No you don't have to label relationships. As long as you and the other person feel comfortable there's no need to put a label on anything.

You don't have to at all. Sometimes you can feel pressured to name and label things which in reality don't need labelling. If you want to, do it, sometimes it can be helpful but it's not always necessary/the right thing to do.

Labels help us understand things and communicate them to others, but they are non necessario if they don't feel comfortable. In fact you can even use multiple labels or none, it's up to you to decide what describes the situation best. Remember, if someone is pressuring you to label your relationship, it's not respectful of you and you still have the freedom to decide autonomously.

For cultural reasons, mainly. We've been told that everything needs to fit a specific category, because society is obsessed with categories and order. But reality is broader than that. Every person lives their own unique experience, and it's ok if it doesn't fit any fixed, pre-established category. You can just live your life and be happy, labels are only there to be used if it's comfortable for you, otherwise they're not necessary.