Why are shampoo caps always on top and conditioner caps always on bottom?

So for a little over a year now, I've noticed that the caps/openings for shampoo bottles are always on top, so that when you put the bottle down, the place without the cap is always face down. I also noticed that for conditioner bottles, it's the opposite. The cap is always facing down. I've been trying to see even one instance when this isn't true, but I haven't found one yet. Why do they make it like this?Why are shampoo caps always on top and conditioner caps always on bottom?
It's not always like this. Yes, some are, but many aren't, and I have many shampoos and conditioners in my bathroom that disprove your statements.





My guess is that conditioner is thicker, so by turning the bottle upside down, so to speak, it will make it easier to get the conditioner out when you begin to run low. Whereas, shampoo is more ';runnier'; and easier to come out of the bottle.Why are shampoo caps always on top and conditioner caps always on bottom?
........ This is silly....... BUT





Shampoo is more... liquidy, and conditioner is thicker. So its easier to get the thick conditioner out of the bottle if you stand it on its lid. However shampoo is more runny and doesnt need this.
The conditioner cap is always on the bottom because conditioner is really thick and if the conditioner cap was on the top, it would take a long time to get out.
It's so people who wear glasses/contacts can easily identify the bottles without having to rely on vision while they don't have any aid.
For visual aid, and because each product has a different thickness.
To aid those who are visually impaired who rely on touch to determine things
only if the carpet matches the pubes
i never knew that NORF NORF HAHAHAHAH NORF NORF
who cares? So you can tell the difference?
they're not, some are, not all. Some Herbal Essences ones aren't.
why does it matter?