You're welcome!

It's difficult to know for certain about your finger placement issue without a picture or video.  Yes, it's possible your Squier neck has too narrow string spacing.  I have a few Strats & Squiers all with slightly different string spacing.  Some are narrow enough that I also can't quite get certain open string chord voicings to all ring.  But the same voicings are easy on a different guitar with wider string spacing! 

An easy way to check that isto try other guitars that you know have wider string spacing.  Some electrics, most acoustics & classicals.  A visit to a local music store to ask about this & play a few guitars would also give you more information.

I have 2 tutorials designed to help improve strength & dexterity.

Trill Drills is a series of exercises that focus on all fretting fingers.

https://www.guitartricks.com/tutorial/1829

Building Pinky Strength & Dexterity is a series of exercises focusing on your pinky.

https://www.guitartricks.com/tutorial/1292

Hope that helps!