Bitcoin is not a religion. Which can be restated as follows: all software has bugs; it is currently impossible to guarantee any given piece of software has zero very serious bugs; #bitcoin is software; therefore bitcoin can fail.
One can follow this chain of logic further and assert that IF bitcoin fails, some of the stronger #altcoins can reasonably, eventually be expected to gain in value and usage. Therefore, while most altcoins are #shitcoins, some of them are definitely not.
We can all argue until we are blue in the face what the probability of bitcoin failing might be. (Personally I think that probability is very low at the moment.) The one propisition that cannot be rationally argued, is that bitcoin cannot fail.
Therefore any rational bitcoin advocate could reasonably hold most of their net wealth in bitcoin, but it is not reasonable (CERTAINLY not if you have dependents) to hold 100% of your wealth in bitcoin.
Buy lots of bitcoin, do it now. Buy some gold and silver, at least some of it physical. Buy small quantities of a handful of the more worthy altcoins. Personally I like litecoin (bitcoin's testnet), monero for privacy, Ethereum which deserves a lot of credit for putting flesh on the idea of "smart contracts". Keep a nice wad of physical cash under your pillow. And then no matter what happens, you and your children are much less likely to be rendered destitute by unforeseen events.
