"It's normals" is not an excuse to play poorly
Normals is for getting skill with champions.
Just because it's normals doesn't mean I can keep going up mid lane and play offensively until I die. Just because it's normals doesn't mean I can take my jungler's farm.
You hinder the other people's abilities to learn their champion when you don't at least try (with whatever build you do) to do well.