Exactly, you can spend or save as you want. If someone needs to save they can use fiat or bitcoin, the latter would obviously be better but situations are not same in every country to allow the latter.

We are still far from a bitcoin-only economy and even if we see a fait-bitcoin hybrid economy, people will continue spending that they usually do. Because these habits of buying useless things or buying less necessary items has stemmed since an ancient time.

As bitcoin usage increases, merchants will adapt themselves to use it and then it will be worth watching.