And neither does any other person including popes, priests or any church. The scriptures is our foundation, not men in robes.
It's not just Catholics who are wrong about it. There are some Protestant denominations that also do infant baptism and they should be corrected too. Again, what matters is what the bible and Jesus teaches, and infant baptism is unbiblical. Infant dedication is biblical.
Edit to add: And yes, it IS all of our business when certain churches are misleading millions of people in regard to the most important topic of all, salvation. I've personally known Catholics who think they are saved simply because they were baptized as babies. My Catholic cousin who I talked to about it did not understand what it means to be born again, or the necessity of it. She thought she was fine simply because she was baptized as a baby, even though she wasn't following Jesus and was at best a lukewarm, nominal Catholic.