Evening all...(sorry!!)
No offence... possibly bad practice.. more so back in the day of dome lights.. now they are recessed and even directional (think map reading lights)
Common misconception is the "white light to the rear" but con and use lighting regs state
(2) No vehicle shall be fitted with a lamp which is capable of showing any light to the rear, other than a red light, except–
(a)amber light from a direction indicator or side marker lamp;
(b)white light from a reversing lamp;
(c)white light from a work lamp;
(d)light to illuminate the interior of a vehicle;
(e)light from an illuminated rear registration plate;
(f)light for the purposes of illuminating a taxi meter;
(g) blah blah blah....
If it distracts you as driver then not a great idea. We use them whilst driving to jobs at night but always after asking the driver if they are ok with it....