Bitcoin's strategy is exactly that. And it would be a GREAT strategy if there was something about Bitcoin that made it the best "digital gold" available.
Sadly, the only property it shares with gold is that it's hard to move. In fact, Bitcoin Cash is functionally identical to Bitcoin and it's easy to move.
That's ignoring the hundreds of other digital currencies not named Bitcoin which make a better "digital gold".
Bitcoin doesn't have a strategy. The "value store" narrative is a post-hoc rationalisation for its continued, yet less and less rational, existence.
The proof that Bitcoin was intended as an alternative to cash, and to be used for small, everyday transactions is right there in the name: It's Bit"coin", not Bitgold, or even Bitbill.
Sadly, the only property it shares with gold is that it's hard to move. In fact, Bitcoin Cash is functionally identical to Bitcoin and it's easy to move.
That's ignoring the hundreds of other digital currencies not named Bitcoin which make a better "digital gold".