Will Zico spend a life surrounded by others with unusual names or might little Zico go to school with a load of James/Alex/Toms and then on to a career where he has to be introduced to very serious people?
Depends what type of people you socialise/mix with. Around here its mostly Harriet, Olivia, Ruby, Finlay, Thomas and Oscars so a Zico would really stand out from the crowd. Of course, that might be what you want!
If you have friends who have children with names like Octavia, Jocasta, Cosmo and Crispan then a Zico will fit in nicely.