I did exactly this for pretty much the same reason. You can turn the loft light off/on independently in the loft, but it is only supplied with power when the landing light is on so you always have light when going up or more importantly when coming down the ladder.Just a note on this one.
I have in the past deliberately make the loft light dependant on hallway light etc.
Some people tell me "Oh I keep leaving the loft lighting on for months and it must be costing me a fortune (filament lamps)".
So I offered to make the loft light switch only operational by its own switch if the hallway light is on.
Off course that sometimes gives the opposite effect - they climb into the loft and try switch it on, it don`t work because they forget to switch the hallway light on first. You can never always win!
Mind you, I once rewired a ladies house and I kept seeing a carrier bag tied to one of her door handles at various times on various days.
I eventually asked why?
Whenever she put a pan on the hob she tied the carrier bag to the door handle as a visual reminder to turn it off before the "pan melted".
