Whichever age you are, that's the best age. I'm a very "now" person.
In America, you watch TV and think that's totally unreal, then you step outside and it's just the same.
I love to go on tour and perform. I love all the parts of the process.
Right from day one, you know when you've written a good song.
You find what you are best at and stick to it. I found my sound early on. Look at U2: they haven't changed their music for 20 years. Anyway, many people come unstuck when they try to change what they do and what they are known for.
When you're on tour you definitely don't want lots of arguments. It's very important that everybody gets on because you're in close proximity a great deal of the time.