Caulk required where wall tile overlaps shower pan?

[bbp]

Previous owner of this house did a bathroom remodel. There is tile on the walls which overlaps the shower pan. They had a thick 3/4" bead of caulk completely filling the gap at the bottom of the wall tile. This not only looked bad but was a pain in the *** to remove.

My question is: Do I even need to put caulk there at all? The tile edge overlaps the shower pan. Any water that splashes will be pulled by gravity back down into the shower. What I am worried about is if I don't caulk, over time, water exposure and hot vapor penetration may get up under there and loosen the tile adhesion? Looking for advice.

Thanks,
Peter

 

[Snoonyb]

Since the caulk was considered prudent, when applied, it may have been considered as necessary, so in that event I would , and because the tile lands above the pan apron, after removal and cleaning apply a thin bead of color matched caulk.

https://colorfastind.com/products/tile-grout-caulk