I mean, to play devil's advocate, there are some subjects in which the person vouching for something being biased because they're "too close" isn't a concern: whenever there's an objective benefit to whatever they're doing
For instance, a person who runs marathons and has experienced runner's high might say running is super fun once you get good at it and you should try it, and maybe you will and maybe you won't, but trying to get good at running wouldn't be a permanent life changing decision like having a child, and it would benefit your health rather than harming it like drugs
There are lots of thrills in life outside of drugs and instinctual hormone soups. Admittedly runner's high is the healthiest example, but stuff like video games, sports with minor risk taking like snowboarding or mountain climbing, etc also fit the bill
I read somewhere that interpreting things like a clean sink or a clean room as a sign of success is actually counterproductive. You might think by thinking this way, that you're motivating yourself to clean, but you're actually just shaming yourself for not cleaning. It's easy to think "cleaning is so simple, it should always be done" when in reality it should be "cleaning is such an optional task it's okay if things build up a bit."
By shaming ourselves for not cleaning, we're really shaming ourselves for having a hard day at work, or going through a hard time, or being depressed. And let me tell you, more shame is not going to make any of those scenarios any better.