It sounds like your mom is concerned about your safety. It may not be possible to convince her to go to the mall alone, but your best chance is to show your mom that you are responsible and alert to your surroundings. It may also depend on your age.
Say all your friends who have one and say there are lots of 3+s
They were allowed to visit Johnny because they were his friends and his "family".
Have/has allowed is the present perfect tense of allow. I/we/you/they have allowed, he/she/it has allowed.
The past participle of "allow" is "allowed."
The past participle is allowed. The simple past tense is also allowed.
No these are applications allowed by Facebook and if it was going to negatively compromise anything they wouldn't allow it.
I really don't think you should let them. They are her parents let them do their job. Maybe you should start with a playdate. Let them grow to it. To them that's their little girl.
of Allow
allowed
ALWD for allowed or ALW for allow
Tell them about the learning experience that it will be.
Allowed is the past tense of allow.