BTC can't be better or worse than cash, it is just a different thing, BTC is like stocks, you can invest cash in it, but you still can't buy grocery for BTC
Bitcoins and money are practically same yet sometimes the bitcoins is superior to anything the money and those cases are the bitcoins has high security nobody could hurt bitcoins however money could be effortlessly hurt the costs of bitcoins are going high and high yet the costs of money don't change that is the reason bitcoins is superior to money.