Can i bring in my small puppy if I'm going to the lens store? She is my emotional support dog

As far as I know. You can

Most places require some type of paperwork either showing the animal as a service animal (are legally allowed everywhere but are required to be wearing a vest generally and have documents that identity them as a service animal) & sometimes stores will allow an emotional support animal (again usually with some type of note or written prescription from a doctor or therapist on their letterhead) but legally they do not have to allow any animal inside that is not a service animal. its generally posted on the entrances to most businesses regarding animals or on their website, Your best bet is to call the store and ask bc service animals will behave differently than pets/comfort animals and can become a liability to the store if they bite or attack someone/cause damages etc. My service animal only was allowed inside here. (I have both a service animal & comfort animal, am a nurse and have a judge/lawyer for parents)

Yes

Yes you can,no worries 🌞

Is this dog a registered emotional support dog? If not then as long as you don't let it down, I doubt they will say anything.

I think so