"Your taste buds will change"

CN for food and vomit.

That's one of those sentences I read every so often, which is technically true, but which doesn't actually lead to the conclusions I see it used to support. Taste buds really do change with age! This is a thing that happens, and it's part of why there are certain foods kids tend not to like but which adults are more able to tolerate. (I think most alcoholic drinks go in this category, where kids tend not to like the taste anyways?)

As true as it is that tastes change, there's some things my brain has decided I need to explain now about why this doesn't mean getting into a power play with someone over what they eat and how they're "picky"  is a good idea.

1.  You probably don't know what the result of "pushing the issue" is going to be. I don't just mean long term results. I mean short term, in the minutes to hours right after forcing the (in)edible object down. Obviously, you don't expect it to be a big deal, or else you wouldn't be trying to force a "picky" eater to eat something they can't eat. How wrong are you ready to be? TMI alert, last time I made myself drink something that was an issue, it came back up. (If it hadn't been something I was medically supposed to have, I wouldn't have tried. It still didn't work, because it didn't stay down.)
   
2. The fact that someone's tastes may change and they may be able to eat a food later doesn't mean they can tolerate it now. The change hasn't happened yet. So even if you're correct about the nature of the upcoming change, you're still trying to make someone eat something they don't currently tolerate. See point 1.
   
1. Also, even if you were going to be correct, you can cause that not to happen by creating an association between being forced to eat the food and whatever sensory issue it's hitting. That can create a new issue with the food in question, besides taste...
   
3.  The issue may not be the taste. I can't drink anything carbonated. You might think that's a rather broad category for a taste issue. You'd be correct. It's not a taste issue. It's best described as a texture issue, and you've said nothing about texture sensitivities changing. In fact, most of the foods I can't deal with are texture issues, not taste ones.
   
4. The changes in taste may not be the ones you expected or hoped for. Some foods that were issues before can become non-issues, but it can go the other way too. As a very small human, I could eat mushrooms. As an adult human, I can not eat mushrooms. (It's also the texture, not the taste.) Chocolate pudding was a "safe" food for me as a kid. It's about 50-50 on my being able to eat it now. (Texture again. Also, partially related to times when I didn't get the choice about yogurt, which has never been an OK texture and which is close enough to pudding that making yogurt even worse made pudding a problem. See point 2.1.) I ... actually can't think of any foods I can have now that I couldn't deal with as a kid. 

Tastes do change as we get older. That doesn't mean they'll change the way you want them to, or that a possible change that hasn't happened yet justifies acting as if it's already happened.