Why why why do people have kids without marriage

I wonder how many think common law marriage exists.

I was looking for house insurance recently and was amazed by how many of the online forms listed common law as a valid relationship status

Plus
They want someone to love them. And that being either a partner or a child or both.
Because Biblical morals went out of the window on the whole, decades ago.
Because many or even most people can only see what is in front of them right now. And believe it all too.
Because they cant see any further than now.
Because they do not know what is around the corner.
Because they have not grown up much. And dont know much about the world.
Because they think, well if it doesnt work out with a partner, I will still have the children.

You couldn’t possibly be blaming women for the shit behaviour of men, could you ?

Because it would have made fuck all difference when we split up.

Other than I'd have had the cost of a divorce (do they cost?) to deal with too.

Because they are sweet, trusting, romantic, in love and not suspicious or cynical.

Not me. I wanted the contract.

Because some might get pushed out of their jobs

Some good partners turn into utter wankers

Circumstances change and no amount of experience and qualifications allows you to earn a good salary and give the support your child needs

Because they're gaslit the fuck out of by men who claim to love them and want commitment I'd imagine, given by a lot of threads on here.

We got married when DD1 was 6 months old. I hadn't even given it headspace to be truthful until we both did a will and talked to a solicitor and financial advisor about it all.

Many pregnancies are not planned so I thought it would be quite obvious?!

Also not everyone sees marriage in the same way, also some have kids out of insecurities or they don't believe in it etc, don't want the other person to take half

There are many reasons OP

Biological clock is ticking and they want to have kids before it's too late, then plan to get married later?

What MrsTP said

Because people often don’t have kids with the view that their partner is going to screw them over? Things change and what may have started as a mutual agreement can sour like anything else

I had a serious chat with a close friend of mine whose dh was a high earner she became a sahm to 2 kids and gave up her job and discussed marriage as a way to guarantee some security. She was blasé but they did marry when their youngest child was 2 in the end

maybe there isn’t enough education out there on ‘common law wife’ etc

Social conditioning. Cultural norms. Lack of opportunity to improve their economic situation.

we STILL haven’t closed the pay gap or eliminated poverty. Perhaps we should ban all human reproduction until we have.

Because:

A shit load of pregnancy isn't planned.
They don't understand legal rights.
They don't think their partner is a shit.
They want kids more than they want security.
They are promised it in future.
They erroneously believe it's just a piece of paper.
They don't know the wage gap and sexism exists until they have a baby.
They are philosophically opposed to marriage.

That's just a random sampling.

I think you're actually asking, why do unmarried mothers give up work or live in houses only their partner owns? Rather than why people don't get married in general