No matter how promising an altcoins can be , bear in mind that the owners has his own reason for creating them which might not be made known on the white paper. If it is not bitcoins , stay away from shit coins with hundreds of empty promises.
If you're a newbie, then don't consider altcoins, because you may end up being disappointed completely, not only that, you would have lose your asset invested on any one of them, we have seen the incidence of pump and dump, the effect of bankruptcy and many other challenges a crypto project may face to hinder it from making progress to its next phase, while Bitcoin cannot behave in the manners these other coins are.