Why the topic of legal currency is rising here mate? I mean who wants Bitcoins to be legalised? Nevertheless I can agree that Bitcoins movement are the main reason for which the altcoins move. I mean when Bitcoins crashes, whole market crashes and vice versa. Regarding crap altcoins, I completely agree that Bitcoins stand before them without any hesitation. According to me Bitcoins are safe investments. So if you dont wanna take risk, then Bitcoins will be the best option.
There is no denying that bitcoin will always be ahead of altcoin, its reputation as a currency and investment asset is no doubt by most users but there are always risks involved. The fact is true, whatever your investment choice, you still have to be able to recognize the risks and be able to minimize them properly.
Bitcoin are safe if you store them in a non-custodial or hardware wallet. Both wallet offer better security, but bitcoin can never be safe from price volatility. The market will always fluctuate, so here you have to be smart enough to manage your investments and funds.