Lastly, as a Bitcoin investor that we are, we should try our possible best to have a very good stash of Bitcoin in our possession, then after then, we can think of investing in some other business away from crypto, to secure our future.
I don't know what you mean by securing future.. but getting a lot stashed into Bitcoin can secure a future , not bad if you think you've stashed enough to also add investment into other businesses as support but that depends on how you evaluate your stash with the word Enough....
I don't know how it's been viewed,adding other investment is a good idea but that shouldn't completely stop you from investing into btc although strategies apart from DCA could be utilised like buying dips when there's already a good stashed available