CPEs loops and Spanning Tree (STP) for wlan1

RouterOS General
1

I have 1 RB532 with 30 clients. Its ethernet is connected to internet through another bridge (not Mikrotik)
So a couple of question here:

  1. I assume if all CPEs connected to MT are bridges too, and a costumer makes a loop
    (not matter how), it will tear down all the network, is that right?

  2. Can I prevent this, activating Bridge > STP > Protocol Mode > stp? How should I tune up this protocol feature?

  3. Activating STP will prevent loops generating by wrong /unauthorized conecctions between costumers CPEs? I mean:

AP--------------------------------------CPE1
| |
------X(link down by STP--------------CPE2

  1. Activating STP will not add unstability on AP?

Best regards.