Why do people who connect with online dating not meet in person for months?

Honest Question (since I have not dated online yet.)

Why do people not meet up in person or at least video facetime with in the first week?

I read post of people texting only for months and never actually meet in person with someone.

I would think for myself, if I connected with someone that I might want a relationship with, then I would want to meet in person over the next week or two.

I dont understand texting for months with no in person meet up. (maybe it is because I work directly with people every day and not online for work)

Can someone explain?