I also don`t drive, or should I say,, haven`t driven much at night but,,,the light from a standard non-halogen bulb is dim and not very good lighting,, IMO,,
The light the halogens give is a very nice bright white and you will be able to see farther.
I think that diagram makes it very easy to up-grade to a better bulb.
I would do it,,,
I also am going to up-grade my wiring,,
Better to do it now, then to do it after a melt down,,,dq