I'd agree that if noone wants to play a hacker, then having hacking taken care of by an NPC is the best thing to do. This could be an NPC/GMPC, you could be hired by a hacker to be his teammates for a job, or you could have Mr Johnson just group you up with another hacker they've already hired.
On the other hand, I do feel that if you have a rigger, then that character can be your primary matrix support character who defends the other character's gear from hackers. Mind you a RCC is just fine for defensive matrix overwatch, they're not the greatest for offensive hacking. Now lots of "hacking" can be done via other means... a security guard can be neutralized by lots of means other than bricking his gun and commlink... a maglock can be picked rather than hacked, and etc. Without a cyberdeck or a Living Persona, you don't have Attack and Sleaze stats, and without those that means your Matrix Attack Rating is 0. Virtually anything will be gaining edge when you try to do offensive/hostile things in the Matrix...