Why is my name like this?

Isn't Juarez your mom's last name? In our countries children wear both parents last names, but when you take that to USA to wear it the people at the hospital do that because they don't get until you explain them. Also in our countries when a woman marries a man she doesn't loose her last name as the English tradition. You have no middle name. Your name is Veronica Solorio Juarez.