Secure rear door identification

[Wonder]

Hi, I was looking for some advice.
Unfortunately, when people get in the back seats, they can never see or find the lock to open the rear door (at least not everyone who's gotten in my car). So when I lock the car with the central locking system from the back seats, they never get out because they can't find the lock to open the door, and I have to open it from the front.
I was thinking about putting some stickers or fluorescent tape on the locks to identify them. Do you have any ideas on what tape I could use? Maybe infugo.
Obviously, a few centimeters, or even millimeters, would be enough to highlight the lock.
Or any other ideas to solve the problem.
Just out of curiosity, do they have different locks in the new versions? Maybe illuminated ones?
Thanks everyone for the advice.

(Sorry for any typos, I used Google Translate)

[ahavoja]

Is this the knob that you want to make more visible to rear passengers?
Maybe some bright colored tape or paint could work, or at night time some glow-in-the-dark tape or paint.

[Lord Voltermore]

Its the case with many, if not most, cars that the driver  needs to be aware they may sometimes   need to 'supervise' ,instruct or assist the exit of rear seat passengers. Especially If the 'child proof lock' function has been  activated which will   also confound adults.     

This could even be a safety issue in the event of a crash where the driver is  incapacitated,  or if  ' untrained' persons remain in a parked car whilst the driver is absent -they may need to exit in a hurry especially in hot weather.   

Its a good  idea to affix hi -visibility tape   , but even the most visible or illuminated button may not  help if passengers havnt been told what to do .    I suspect some drivers  , who seldom if ever carry rear passengers , wont themselves  know  how it  works anyway.     

There was something on the UK  news  recently  where a full EV car caught fire and  the driver was unable to open the rear  doors from the outside to rescue her children.  Maybe due to central locking failing  to release the doors due to early damage to the cars electronics.  But maybe in her panic she didnt know what to do, or did something wrong.  Passing drivers managed to rescue the  kids unharmed by smashing the window.   

 Its a good idea to ensure you are familiar with the  locking sytems and maybe carry one of those hard pointed emergency window smashing gismos. 

[Kremmen]

These may work

I bought a pack years ago, have some dotted around the house and they work well in dark or dim spaces

https://www.amazon.co.uk/dp/B09284881V?psc=1&ref=ppx_pop_dt_b_asin_image

[Wonder]

Hello and thank you all for your replies.
The lock is exactly the one in the photo,
and the problems highlighted are precisely those listed by @LordVoltermore.
Every time I load people up and lock the car with the central locking, no one can get out of the car (or escape) unless I open the front door or deactivate the central locking.
I'm shocked that a car with so many safety features doesn't have a simple, highlighted lock. I thought perhaps the latest versions had a more recognizable lock.
That's why I was looking for advice on how to fix the problem, or at worst, what type of tape to use.

[jonhd]

These may work

https://www.amazon.co.uk/dp/B09284881V?psc=1&ref=ppx_pop_dt_b_asin_image

My word that's some pretty desperate marketing...

🌟 Give your kids a mysterious starry bedroom, a romantic surprise for your lovers.

[Lord Voltermore]

I have a cunning plan . Anyone wishing to travel as a passenger in your car must undertake a small training course , pass a test  and pay you  5 Euro for a diploma    Only Joking 

When we carry  a rear passenger ,especially elderly ones, I normally have to help them find the seatbelt and show them how to buckle up anyway.

[ColinB]

Every time I load people up and lock the car with the central locking, no one can get out of the car (or escape) unless I open the front door or deactivate the central locking.

Maybe I'm being dense here, but I don't understand this. Why do you want to lock people inside the car? Surely the central locking is only for use for security reasons when the car is empty of people? If you want to stop passengers accidentally (or even deliberately) opening the back doors, that's what the child lock is for.