Yes, I feel that calling a dive should be part of instruction. But more importantly, I feel that DMs/AIs should be taught how to accept a diver’s decision to abort a dive.
e.g, I was at a DUI dog day trying out drysuits and I was having issues. First, the air went to my feet and I shot up to the surface feet first, the air popped the boots and fins off my feet and I couldn’t get them back on. The DM, or whatever he was (I wasn’t clear on what his level was), said he’d help me put them back on under water on the platform below. Descending for a second time, I was having trouble clearing my ears so kept trying to go up to get them clear, but the DM kept pulling me down. (I could have smacked that #&#%!) I kept signalling that I wanted to abort the dive, but he still kept pulling me down, until I actually did smack his arm away from me to make him let go and went up.
It’s one thing when you’re embarrassed about calling a dive. It’s quite another when you want to but aren’t allowed. One reason why I’m taking solo diving certification. (Don’t get me started on the others.)