I'm trying to understand the exact meaning and usage of
take an interest in. There are several examples of the collocation in various dictionaries:
What is the most common circumstances in which we use the idiom in place of, say, just to be interested in. Examples from the dicitonaries:
Do you take an interest in your children? You should take an interest in everything your child does.
Why don't we just say
Are you interested in your children. You should be interested in everything your child does.
What is the differences?
Or this one:
‘What do you mean?’ asked Pat, now taking an interest in the proceedings.
As far as I got, the meaning of
take an interest here is that your interest is getting increased. But why don't we say
now I'm becoming more interested in the proceedings