Optimisation
Do not optimise for something we do not need. Especially the “not ever” ones.
The “not yet” ones are trickier, because we will be temped to “might as well optimise for it now”. But what if eventually we learn that we do “not ever” really need it?
It depends case-by-case when to postpone and when to do it now. Understand the trade-off. And decide purposefully.