Common sense says that one should not place bedroom 1's bedroom door so close to the staircase landing.

[Cecil Lee]

Common sense says that one should not place bedroom 1's bedroom door so close to the staircase landing.

This is because someone in a hurry.. and especially in today's world.. often a person would be too engrossed with their handphone to notice others coming up or going down the stairs.

Thus may trip that person.

Secondly, where possible avoid the staircase directly facing a bedroom door: as shown in B.

 

Frankly, a degree in common sense is free. One can even obtain a Master’s or Doctorate, here!