After reading that awful thread in step parenting where the poor guy wasn't even his 'sons' father and handed loads of money over to the horrible sounding mother, I really think all babies should be DNA tested as soon as they are born with the potential father/s, whether from a good relationship or not.
It would save a lot of heartbreak and wasted time and money. It can easily be told by blood types. My whole life my mum told me I had a different blood type. Then when I found out at my booking bloods and told her she got really confused about my dad's blood type. I really thought my dad wasn't my dad so he went and did a DNA test to reassure me. AIBU to think this should be a routine thing at all births and father's name shouldn't be on the birth certificate until it's done?