It all is up to you.
I couldn't stand Jackson's puppy hair. He started looking sooo straggly and messy. I would have to brush him 4x a day to even look like I brushed him at all.
I prefer to keep his hair short, as he had kind of curly-ish hair and it starts to look messy when it grows out.
First pic is as a pup and then the second is how I try to keep his hair now.