I don't use knives in my kitchen. My romantic partner does. Yesterday I decided to cut some tomatoes only to find out that all knives are dull.

She never said anything, I didn't know it. Why?

Because she is just "used" to it and to her these knives were just fine. So she never thought about sharpening knives in the first place.

I will take those knives to a pro and he will sharpen them for me, as in a rental I stay in, I don't have the tools to do that and as I said in another comment - I don't have a pain free process to do that as I don't do it often.

You don't really need "tools" to sharpen knives. You just need a harder surface and some experience. It's one of those things that once you learn you can accomplish with a variety of "tools" because you're just trying to achieve an end goal. There's zero reason you can't sharpen a knife in a rental, lol. You don't need a belt grinder or anything.

People get way too caught up in buying into systems and being told how to do things because it alleviates some anxiety of trying something new. Sharpening knives hasn't really changed much in the last few centuries. Watch a few guides and learn to do it. There's no substitute for experience here. It's also a very transferable skill so it's one that used to be taught in schools but no longer is.

This is all very defeatist. Learn to sharpen your knives for your own sake and your... romantic partner. It's a very basic life skill that you should know.

Were you cutting tomatoes with a serrated knife? If not, you should be - they do a far better job.