It depends on what people buy for BTC, if someone earns money solely in BTC, then its the only way for this person to buy things for a living. The only thing about BTC is that there should always be some protected accounts with some bitcoins to hodl, since long-term earnings are possible. As for earning in fiat and selling collected fiat to buy BTC, then the best way is hodling without financial harm for everyday life, and harm means not only basic needs, but also ways to cope with stress. BTC has gambling aspect, so transforming all the excess money to hodling can lead to ruined expectations, the same can happen if the situation is the opposite: spending all without any coin to hodl. So the main thing is to find the balance of spending and hodling, following this balance will diminish stress. One of the main enemies of balanced hodling is tendency to purchase things impulsively. Knowing personal traits in money managing is vital for a person to establish the correct balance.