growing beetroot and eating the leaves

[DevilsAdvocaat]

am currently growing some beets in my garden (1st yr novice). have recognised the leaves as the yummy ones you can buy in mixed bags of lettuce, i think! my questions are:

can you eat beet leaves in a salad without cooking em first?

if i take one leaf off each beet plant will it effect the beetroot growing?

am i better off waiting until the beets are ready to harvest and then boiling the leaves like cabbage?

You're better off picking a few young leaves form each plant if you want to eat them raw.

The older leafes will be better cooked (like spinach)

ta