Robby Takac can’t believe he is still making music after 31 years as the bassist/vocalist in the Goo Goo Dolls. Spending summers hitting the road with frontman John Rzeznik and drummer/Phoenix native Craig Macintyre is fulfilling.“It’s just amazing to me that people are still excited about it, too,” he says. “We’re having great summers still. John and I both have babies now. We’re grown-up Goo Goo Dolls now, but we’re having fun.”Goo Goo Dolls and American Idol winner Phillip Phillips are set to spend this season touring. The jaunt, in support of the Goo Goo Dolls’ new EP You Should Be Happy,