I have been using NHS hearing aids for many years. They have got smaller and smaller. The current ones I have (no flowers painted on) but similar. Nobody knows I am wearing them. They are serviced (new tubes) regularly at my local Audiology Centre. Indeed, it was whilst I was doing this with my last ones, that they told me they needed to provide me with these newer, smaller ones. I get my batteries from a local clinic, Do go through these quite a lot as I need both aids in all day,
Hearing aids do need slow getting used to. When they are first used, everything sounds so very loud, you hear rustling of paper, footsteps, etc so very very loud.
It is important to persevere, by wearing them for an hour or two fir the first few days, then an for 3 or 4 hours for the next few and so on.
Even getting new aids, means that your brain has to sort them out and that can take up to a fortnight.
BUT so worth persevering and being able to be part of normal society again.
Would also say that one of my SiL's has a very bad skin problem and could not wear these 'behind the ear' aids, so the NHS made special 'in-ear' ones for him.
The NHS provides a wonderful, first-class service with audiology, such a pity it is not the same for dental and optical treatment.
If people feel that they need to pay (and can afford to do so) for these), - probably be similar to what NHS offer - then they should do so and leave these free-at-the-point of need service for those of us who really require it.