You think your mouth is on the inside? Bad news, you're just a donut. That mouth is outside your body.

When you touch something it's nerves that make the perception possible, which are inside of you.

Hmmm no. Sound is pressure waves, not actual matter transference. Light, is sort of the same (ok, that's a bit more complicated, but if we're going to get into the quantum mechanics of it, touch is just based on waves of probability too).
Conversely when you touch, there are lots of molecules that rub off and transfer. Some of those will embed into your skin.

Oh. touch can be inside you.

It also can be most intrusive when engaged in sex.

Go touch a gympie gympie and then tell me how you're not actually in contact with something.

Fyi, "obstrusive" is not a word that exists. I think you were trying for "obtrusive" but actually needed the word "intrusive."

Taste is just just more sensitive touch and smell.

Prove me wrong!

touch is the sense that's most commonly bothering ya, creating discomfort

My sense of smell is terrible so it’s the least intrusive for me and my sense of touch is practically overwhelming on a regular basis so I’m going to say this has a lot to do with the type of body you live in

Fo sho.