You know they fart. You know they drop things. You know they cough up stuff. We allow this stuff into songs. It's very juvenile to expect people to take one tiny facet of your personality and assume that's how you are, full stop.
Teenagers go for seriousness.
They're at a point in their lives when they don't think anyone takes them seriously, so they go and coat themselves. They read serious books. They coat themselves with serious music. They think they'll be dripping with seriousness, and their elders will say, 'Well, I finally take you seriously. You still live in Swindon.