It because OP hasn't ASICs nor GPUs. Even while post, OP uses the phone that will use for mining. Relax, am just kidding

I didn't get this, where's the joke? The grammar?
It's clear enough the direction of that question. That's more like a statement that mobile mining isn't profitable, then why OP want it? That was also your statement above, Am I right?
Joking with answering an above question will be fun, right?

Just forget it. Anyway, OP had enough suggestion and technical explanation from you all.