Saving or invest some times could be the same.
If you buy btc, you're saving your fiat currency and meanwhile you're making a good investment.
The classic way to "save" money could be useless in a long period of time.
Saving is never useless no matter how you do it, if you do it in a modern way like investing or saving your money in bitcoin then that is good too but even if you just save the money you want to that is cool too, they will be of work later on in future if you face some monetary problems.