Are double strollers necessary for 2 under 2?

Jaime • PCOS & IVF mama to a beautiful 2yo girl and a surprise miracle girl born 2/6/18!

My daughter will be about 19.5 months old when baby girl #2 arrives. I have 3 strollers: traditional with infant car seat, jogging, and umbrella. Is it necessary to have a double stroller? Also, for those of you who have them, what should I look for? What do you like and dislike about yours? I don't think I want a side by side so I can get through most doors. Thoughts and suggestions are appreciated.

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