Okay, here is my two cents on this topic.
I like his rule about playing his "Greatest Hits"because there will be members of the audience who have never seen him before and they wanna hear them. If I was one of those fans, I would be thrilled to see him and playing his big hits would be a dream come true for me. Ya know what? The first time I ever saw him was in May 2002. He played those greatest hits and it was a dream come true for me.
I have seen Paul 5 times now. The concerts were all nearly identical with a few songs changed up in the set list. I am a very blessed person to have seen him 5 times. As a first Generation Beatles fan, I could think of a gazillion songs that I would love to see Paul play in concert. But, ya know, it doesn't matter to me. As I say, play whatever ya want Paulie and thanks very much love.