"Do men need to be taught HOW to be fathers or do they just not care as much as women?"
In an environment of unconditional love the sex of the parent is irrelevant. The bond between father and child is unquestionable and enduring. But I speak of a healthy balanced relationship that often never exists for many children. As the step child of a Vietnam war veteran I was raised in an environment of indifference and devoid of expressions of love. Thankfully I have realized that my upbringing was not normal and not my fault.
In an environment of unconditional love the sex of the parent is irrelevant.
Unconditional love is only part of the job of a parent. Also, unconditional love can be interpreted in different ways. Is the parent who always backs up a child who is misbehaving at school providing unconditional love? In their interpretation, they may be.
...I'm just wondering if that's the kind of attitude men naturally have.
Belle, it's not natural; most men learn it.
When my baby sister and baby brother were infants, my dad and my sibs shared most child care duties. Including when the two peed in their diapers; my dad and all of my sibs changed them. However, when the two pooed in their diapers, my dad with great hilarity said they were my mom's babies. She and maybe my older sister changed them; my brother and I didn't.
I don't really know what "healthy" looks like....
On behavioral issues my mom and dad were "old-world German tyrants" and occasionally violent. I was 41 and divorced, with no kids, when a woman I was dating occasionally told me that she and her four kids, their ages from 9 to 13, made family decisions in council. It surprised me pleasantly.
The morning after the first time I stayed all night, she told me that if the kids had objected I wouldn't have stayed. This one stunned me, also pleasantly.
My schoolteacher wife had taught fifth graders comprehensive sex education and we talked about what kids said, but I was stunned all the same.