Should you really put your own oxygen mask on before putting on your childs? [closed]

You know on the planes they give that message that in case of emergency you should always sort yourself out first, is this against Yiddishe Hashkafas

On the practical side. If a child faints due to lack of oxygen an adult can still put on the mask (Hopefully before any brain damage occurs). If the adult faints due to lack of oxygen the child cannot be relied on to put on the mask.

The Klal is Chayecha Kodmin but perhaps that is only a Zechus and not forced

BASED ON THIS REASONING IT MAKES PERFECT SENSE - Passengers are instructed to do this because the time of useful consciousness after sudden depressurization at high altitudes is only a few seconds, and if parents spend those few seconds trying to get masks on their children, both parent and child will pass out before they succeed, and then neither parents nor children will have masks on, and both will risk brain damage from oxygen deprivation.

Many parents become irrational when protecting their children and will do bad, "heroic" things that might endanger the kids in an emergency, rather than do things logically. The crew instructions telling parents to put their own masks on before they put masks on their children are intended to try to overcome this tendency of parents to do irrational and dangerous things. Whether it works or not depends on the parents' personalities.

If a parent puts his own mask on first, and then puts his child's mask on, neither of them will be deprived of oxygen long enough to cause any problems, although the child might pass out briefly until the mask is on. If the parent bravely "saves" his child by trying to put the child's mask on first, they may both die of hypoxia.

What's the issue? In a dangerous situation one should save himself first.