It's sad but it's true that a lot of men are taking care of children that weren't sired by them. When a child is born, consider yourself to be "the alleged father". Don't sign the birth certificate until DNA tests have proven you to be the actual biological father.

If you rush to sign the birth certificate and later find out that the child does not belong to you, you will be forced to continue paying child support for a child who was conceived when your wife had her legs wide open whilst being banged by another dude before he dumped his cum into her. That's because according to the shitty laws "It's in the best interest of the child that the legal father continues taking care of it(child)".

In Australia back in 1993, a man called Liam Neale Magill separated with his wife whom he had 3 children with. He went for DNA tests in 1999 and the results showed that only the first born was sired by him. However the High Court forced him in 2006 to continue paying child support for the other 2 children.
https://www.google.com/amp/s/amp.theage.com.au/national/paternity-fraud-dad-loses-appeal-20061109-ge3j52.html

In most US states, it's possible to relinquish legal responsibility to the child after DNA tests, but it's extremely difficult and very expensive since you'll have to pay lawyers.

In France it is even worse, fathers are not allowed to carry out paternity tests at all. If a father decides to have the tests outside of France, he is immediately arrested upon his return to France. According to French lawmakers, this law exists " To protect the family". Basically fathers are being denied the right to know the legitimacy of their children and are being forced to take care of children that don't belong to them. They know French women are notoriously promiscuous so most men aren't gonna stay for that shit after finding out they have been duped into acknowledging a child that aren't theirs. Anyway that's what happens when you have a beta ass president like Emmanuel Macron who married a woman 23 years older than him. https://www.ibdna.com/paternity-testing-ban-upheld-in-france/

In Zimbabwe, the leading DNA testing company 'Global DNA' revealed that 70 % of men in the country could be taking care of children that aren't theirs. In January 2023 alone, 70 couples went for DNA tests. Of those 70 couples, 84% came out negative meaning the children had 0% DNA from the father's. The companies chief consultant Dr Tinashe Mugabe made the following statement: " The majority of people are living in the dark. They don't know if they are truly the fathers. Some people just have an attitude that they just don't want to have a test but truth be told, the mother has already told the real father about the child and by not wanting to take responsibility they will leave that other man to take care of the child, paying for school and maybe university. Imagine after university he comes and says the child is his, the disappointment, the pain ," he said. Luckily in Africa it's easy to relinquish legal responsibility to the baby after negative DNA results. https://bulawayo24.com/index-id-news-sc-national-byo-136266.html

Conclusion: Don't sign the birth certificate man before you're sure, ladies have become literally bitches (female dogs) that breed with an male. DNA is not a luxury, it's a necessity for your own good.