Go switch to Signal.
http://www.popularmechanics.com/technology/apps/a25736/signal-app-guide-how-to-use/
yeah, I'll wait.
You aren't in danger today, but someone you know will be prolly within the next 2-4 months, and using Signal could *literally* save their life.
Plus, you can send extra big gifs to your contacts, and it has encrypted calling.
Seriously, stop waffling and go switch, it will import your texts and nothing changes for your non-Signal contacts.