Should I invest in a global index fund or separate regional funds like the U.S, Europe, and Asia?

Im looking at a global index fund but the problem is that its 73% usa and 7% europe. Should i just put my money in this or should i seperatly buy regional funds? If i would buy regional funds i could decide for myself how much money i want to put into each region. Would the fees be a problem if i buy many index funds? They are like 0,3% and 0,4% and 0,25% but with the global there would be just one fee of 0,3%