Are you talking about investments or speculations? As for the first, I’m totally sure that every person should invest in Bitcoin and own at least a small portion of it. We are going to disrupt the old world and create a new crypto society, so BTC would be useful. If you are confused, check CEX, it has great guides on purchasing your first coins like bitcoin or ethereum (https://www.cex.io/buy-bitcoins, https://cex.io/buy-ethereum). As for speculations, I don’t think that Bitcoin is a speculative asset. Of course, it became more unstable thanks to its insane price and importance but it’s still suitable for payments or money transfers, not for trading only.