do adults need fast passes to accompany kids meeting with the princesses?

[WDL]

Or what is the minimum age of a kid to get in the line alone to meet a princess?

 

[KrazeeK120]

I believe the minimum age to get into any line alone is 7.

If a child is going to use a Fastpass, any accompanying adults also need to use Fastpasses.

 

[mesaboy2]

From the FP FAQ, Post #2:

- All guests entering an attraction's FP queue must have a valid FP for that attraction, including all character M&Gs. The only exceptions to this are small children under 3yo, who do not need FPs.

Or what is the minimum age of a kid to get in the line alone to meet a princess?

Minimum age to enter alone is 7yo.

 

[Gentry2004]

But if you want to take photos, you must use a FP+ and go with them.

 

[Best Aunt]

If you want to get in the fastpass line you need to have a fastpass. What you do when you get to the front of the line is up to you (meet the princess yourself, take pictures of your kid, step to the side and wait).