I find it easier to write/recieve a check and use it with my banks mobile deposit than any of the reinvented wheels. I don't understand why we can mobile depos

I find it easier to write/recieve a check and use it with my banks mobile deposit than any of the reinvented wheels. I don't understand why we can mobile deposit checks, but using a bank app generated and signed jpg check isn't an option. Email, txt, or even print-mail-deposit. Recipients could do the same. Mobile deposit app opens the file instead of taking a picture, automatically stamp your endorsement, submit, done. Or print and deposit. It could have been so simple.