Yes.
Your training depends on agency & time of cert. If you're asking, you weren't taught to accept 1 reg. Now'days, some require a computer & don't teach tables anymore but if you got cert., before the nerd changes, online elearning, mandatory CPUs, ect., like before your instr probably even got certified, you were taught tables & sharing, as well, as OCTO - no questions asked, share. It isn't an excuse, to not buddy dive or turn down a buddy but that's up to you, if you can't handle 1 reg. ... Over here, today, people soil themselves. I accept it from a buddy & look forward to it.