Adult sims cannot access bed

@WingedSnek 

I tested the arrangement you described and showed in your pics.  MOO was on but I didn't need it to place the bed.  But I think I figured out the problem.  It's the hanging light.  With short walls and that light fixture, teen and above sims don't have enough headroom to go under the light.  That's why the sim curved around in your 1st pic.  So, to fix it, change the light fixture to one that is closer to the ceiling or change the wall height to a taller height.

Hope this helps.

I don't know how to reply to two people at once, but both of you are absolutely right! After removing the headlight the bed and drawer could be accessed without any issue. Thank you so much for your help! I might not have found out otherwise, because I always use the bird view when building and, thus, don't really see the distance between the floor and the lamps. Makes me wonder whether there should be any warnings by the game like (I believe) in Sims 3 where a pop up saying „Walls are too short for this item“ could show up. Admittedly, this is a very specific case, because there was no space to walk around the headlight, but I suspect that other people might have issues with that too without noticing. After all my sim also had a speech bubble, which indicated that the bed was the object blocking the way and not the lamp, which technically is true.

@WingedSnek    I'm glad you were able to figure that out!  It looks like @CGrant56 and I were replying to your post at the same time so your response is appropriate. :-)  I don't know if it would be possible to offer a warning about the lights since it would need to account for walkable space for teens and adults, which would include items in the space that create potential routing failure.  This would need to account for using MOO to place items which can also cause routing failures.  In your particular case, there was the added issue of a raised floor, not just the items placed that prevented sims from walking around the area of the light.  When I lowered the floor, the adults were able to walk under the light that you used.  Whatever the case, routing issues caused by overhead lighting has been a problem for a while.  There are some lights that cause a routing failure even when the floor isn't raised. So perhaps the dev team could investigate ways of preventing that or offering a warning when lights may be too low for teen / adult sims to walk under.