Are you as optimistic about Dogecoin's growth as before? Without Elon Musk behind it, Dogecoin wouldn't be as hyped. So this is also worth considering. The hype is essentially dead, even if it's been around for quite some time.
The Elon Musk hype was a thing of the last cycle and it is no longer relevant, you are living in the past.
As for whether it will still be around in 2030, it certainly remains. Will it remain at the same value/level or be able to significantly improve compared to today?
It will remain around. For values and position, nobody knows. It is the same for DOGE as it is for almost all altcoins pretty much, so pointing this out as some kind of argument is misleading. It applies to everything here.
And do you think Dogecoin will reach $1 in the future?
This is another stupid question that shows you barely understand anything. DOGE has an unlimited supply and quite expanding supply, so whether it will reclaim a previous price or reach a new high is not how you approach this question. If you look at the total market cap, it is performing better than most altcoins.

Sadly, I don't own any.
If you understand market theory, technological revolution/disruption, and system adaptation, you'll understand that it's all on the same page.
Memecoins and general altcoins are entirely different and their markets function differently, it seems you are the one who needs to read again market theory.