Every day, I see misguided comments on internet. Google search, Facebook groups, etc. Well-meaning individuals giving wrong advices to other cat lovers. Just because someone has cats for many years doesn't mean their advice is accurate or based on science. "I have always done that and my cat seems fine" I often hear. Usually when I ask for more information, I might find out the cat hides under the bed all the time, "because he enjoys doing it, he seems fine".
Sometimes people have multiple cats and again they said "cats seem to be fine" except one cat "prefers to keep to himself" while I can see there are micro-bullying going on in the house.
Other times, I have clients who contact me after dealing with certain cat problems for years. They only seek professional advice when major life events happen - getting married, having children, moving...or rather, not being able to move (!) as their cat doesn't want to go into a carrier...
It doesn't need to be this way.