Tell your dad that bitcoin is the way of the future!
Well, I would advice him to believe his dad instead of a bunch of lifeless anonymous spending their time on a forum. Seriously, it's very very hard to tell the difference between foolish people and visionary people. We take the risk because we are adult, we have the right to do what we want with our money that we earn. He can't. He's 16 and, statistically, have less experience in life which means he could be fooled easily.
(Some 16 people are obviously smarter than some 50 people but that's not the point here)
16 is old enough to go to war and die in most countries ... don't be so damn patronising to the guy.
If he misses this chance at bitcoin and spends the rest of his life scraping and scrimping to get by are you going to be sending him welfare checks ploum?
You'll be responsible for stifling ambition and vision, how sad is that? (What exempts you from the lifeless anonymous on internet label anyway?)
Listen to your heart kid, do lots of reading and damn the torpedos!
You got this far, figure out why mining is good or bad and go for it .... just between you and me, if your dad can not see the potential in bitcoin he is just about an idiot.