Depends on how agressive the grass is, we got some kind of tall(over six feet if left alone) cat tail looking grass that hasn't lost the fight yet after 20 years

If you have a dandelion problem I would recommend you mulch / mow the dead dandelions you pull back into your yard. Dandelions are a dynamic accumulator which means they are very good at pulling up vitamins and minerals from the soil which they incorporate into their roots leaves, etc. This means dandelions will contain those minerals when being mulched and mowed back into your yard. If you are having a dandelion problem it likely mean your yard needs one or more of the minerals that they accumulate. So my mowing it back in you will feed your lawn and reduce their appear in the future

Where I live it's frankly too dry for uniform grass lawns and dandelions will completely take over if left alone. I'd be fine with it if I didn't find the green jagged leafed plant and milky red stems so fugly, never mind the nice yellow flower.

I've been overseeding with white clover and native wildflowers since moving in both of which thrive in the spring choking out dandelions naturally. Puts nitrogen back into the soil too unlike grass.

All I do is aerate now.

Better for the bees in two ways. One, I'm not spraying chemicals and two, dandelions are actually pretty shit tier from a bee perspective.

Objection m'Lord!

I present to the court, exhibit A: https://youtu.be/bpEy-Mpm6AI