My friend, in her nineties, has one like this. In her little ensuite, it is positioned between the loo and the door [the only available section of wall space]
She usually sits on the loo seat to dry herself off after her shower.
Her daughter was concerned- the towel rail can get surprisingly hot sometimes, and she was worried her Mum might burn herself - or maybe grab it for support, then jump back in surprise at the heat, and fall.
Solution, make 'sleeves' for the rails, using towelling and velcro. My friend gave me a suitable towel, and after some careful measuring and geometrical calculations, I cut out the pieces [the remnant left was barely big enough to make a facecloth! I was careful to use the existing hems where I could, and finished other raw edges with zigzag stitch.
And now it is in place, I hope it will make the bathroom a safer place for this bright and sprightly old lady, who is always such a bright and cheerful member of our congregation at church.
It was suggested I should patent this idea! Not doing that - but I am sharing this idea, in case it is of use to anyone else!
The side sleeves each have 3 strips of velcro - 5cm at top and bottom, and a 20cm strip between the two panels of rails. That's proved sufficient to keep things in place. There is still room to hang towels on the rails.