I've never liked older people try to tell me I'll think like them when I'm their age.
Guess what? You won't think like me when you're my age. You'll still think like you.
Of course, that's when you'll have some smartass 22 year old kid telling you that you have no idea what it's like to be 22 and to "stop telling me I'll be like you when I'm your age!"
Seriously. It's happened in every generation and it'll continue until the end of time.
In fact, it's happening right now.
Back on topic, in my opinion if you don't think you'll like this Man of Steel thing you shouldn't go to see it. It'll be out on video in a few months anyway, so you can save your money for whatever you spend your money on and rag on this movie when you see it free on tv.
But who knows? You might like it after all.