I saw something on a friend of mine iPhone I was amazed, this guy has 3 pieces of bitcoin but he didn't look it when you look at him with mere eyes, I ask him how he has come this far, he told long ego he was seriously investing on all kinds of coins with little amount of bitcoin but then most of those coins help him to realized enough amount to buy more bitcoin because that was his primary target. He normally buys those zero value coins when they appreciates it will be enough money, and that's how he convert and swag all to bitcoin and today, he has 3 piece. Is good to be diversified in your investment, somedays something good will come out of one you don't expect.
I think it was possible because your friend was lucky. And that happens to very few people. I think it's a bit of a gamble to spread your investment between alternative coins just on a whim. Currently this market is in a very bad situation now this crypto industry is full of scammers. So thinking this now will not work, now if you want to diversify your investment then you have to do a good analysis about that token or coin. But I think your friend last did a very good job by converting all to bitcoins in which their fund is secure now and also can earn a good profit in future if holding for long term.