Has it been grafted? What do the roots look like? Is the stem nicely tapered? Does it have other interesting features?
Those are the questions I ask myself in order to decide whether to keep it or not.
Naturally, any woody plant can be trained to become a bonsai. HOwever, some are more likely to become a success than others. THis one.. I would expect a decade or more before you get to the point of considering primary branches..