Do both sentences have the same meaning?
Why can't you be like your brother? and Why can't you be more like your brother?

Question

Do both sentences have the same meaning?
Why can't you be like your brother?  and  Why can't you be more like your brother?

Answer

I just think they have the same meaning. lol But I prefer the first question.

Answer

What's more and what's less?  Let's say that everything has the same meaning, more or less.  Why not?  It makes everything easier.