If you are a parent, think back to when you were pregnant. Do you remember all of the discussions you had with your family members about what to name your baby? As a teacher this is especially difficult because invariably someone will suggest a name . . . a perfectly wonderful name, but . . . you once had a student with that name. Let's just say you don't want daily reminders of your time spent with that student.
Even naming a pet isn't just as easy as 1, 2, 3. There are discussions and negotiations before consensus is reached.
Are you a teacher who has decided to take the plunge and set up a TPT store and/or blog this summer? One of the first things you will be asked when setting this up on TPT and the blogging site is about the name of your store/blog. You will confuse your followers less, if the name of your blog and the name of your store are the same.