Of course it is, a young person hasn't had the chance to live their lives.
Death is what happens to all of us eventually, but nowadays we don't expect it to happen until we've had a really good shot at life. A young person who has their life ripped away is cheated out of decades of life, all their plans, the chance to start a family. An old person has already had that chance.
That doesn't mean old people shouldn't be respected, protected and cherished, but of course someone of 90 dying is different from someone of 19
You see this at wakes and funereals. Wakes where an elderly person has died are often lovely - lots of swapping stories and reminiscing and enjoying seeing family. Of course you miss them, but generally the old person in question actively wants that sort of send off
When a young one dies, nobody is cracking jokes or telling old stories.
I think covid has shown how detached people are from death. For the first time in history we can mostly all expect to live until we're old, it's our right. Very few of us even slaughter our own meat, many people will get to their 30s and 40s without having to attend any other funereal except perhaps their grandparents. And overall that's brilliant, christ I'm glad for it personally - but I do think it lulls us into a sense that death isn't really something that applies to us anymore.
Past generations were keen on the idea of the memento mori for a very good reason.
Basically I don't think we're emotionally equipped any more to make the sort of decisions we're being asked to make during this pandemic. 100 years ago, in my area anyway, old people would have been told to read their Bible and thank God for the life they'd had and try and make a good death. I don't advocate for that either by the way, but I think the issue now is that we're trying to save everyone and everything all at once, because we live in a society where we generally can have everything we want and the doctors usually fix us all, and actually it's becoming obvious that it's not working this time, something is going to give,but we don't have any control over what it's going to be because we've lost that slightly callous "well everyone dies" attitude that was such a part of humanity for millenia