As mentioned in another comment earlier, this might be easier if someone had a much higher income.
For example, if you made $200k/yr, saving $10k/yr is trivial because that won't require too much effort. Conversely, if you made $50k/yr and had to save $10k/yr + you had childcare expenses....that'd a bit tougher, if not outright impossible.
At some point, it may be easier to just make $10k more per year than to save another $10k/yr. For example, saving $192/week might be near impossible if all fixed expenses put you into saving only $10/week. In those cases, you can't really squeeze any more blood from a stone and it's easier to either 1) work a 2nd job / hustle, or 2) get a raise to make an *additional* 10k/yr. If you can only save $10/week but made another $10k/yr, you don't have to sacrifice your quality of life at all and you'd still save an extra $10k/yr.
Certainly, making an extra $10k/yr isn't easy, but it's easier than doing the impossible which is to save an extra $10k/yr when there isn't any more room in the expenses to do so.