Everybody has an opinion about learning to dive, scuba diving, and scuba equipment. Their opinion may come from a place of inexperience. Listening to their advice may actually endanger you. Listen to the advice of your professionally licensed diving instructor. Your licensed PADI instructor is in the water each week turning novice divers into pros. Has spent years of dedication becoming a better instructor by participating in continuing education. Has attended professional seminars and worked daily with other dive professionals. The only opinion to value is that of your professional dive instructor. A common example of this is older divers of the last generation who continue to recommend dated and inefficient equipment such CO2 inflated BCDs and old black rubber fins once used by navy frogmen in the 40s. A lot has changed in efficiency and safety with training and equipment. Wake up and make your own decisions when learning to dive – it is directly related to your safety and well being.