I'm pretty sure Litecoin will last a lifetime. Just like you said, Litecoin is one of the oldest surviving coins after Bitcoin. It's a tried-and-tested blockchain network with a solid foundation built upon it. Other altcoins are easily attacked because of their low network hashrate. But Litecoin hasn't seen any kind of interference since launch (as far as I'm aware).
The reason why Litecoin hasn't been soaring towards new heights is because of low market demand. Most people are focused on "De-Fi" and NFTs, so single-purpose blockchain networks (like Litecoin) are left behind in the dust. What matters is that Litecoin stays decentralized and censorship-resistant. Only this way, it'll be able to withstand governments' efforts against it. I wouldn't worry about Litecoin's price as long as the Blockchain is still alive. Just my thoughts
The reason why Litecoin hasn't been soaring towards new heights is because of low market demand. Most people are focused on "De-Fi" and NFTs, so single-purpose blockchain networks (like Litecoin) are left behind in the dust. What matters is that Litecoin stays decentralized and censorship-resistant. Only this way, it'll be able to withstand governments' efforts against it. I wouldn't worry about Litecoin's price as long as the Blockchain is still alive. Just my thoughts
I wouldn't go to the extent of claiming that Litecoin is "left behind in the dust". The market cap has steadily increased over time, ever since it was first mined more than 10 years ago. It is having a market cap of $12 billion, which IMO is considerable. Now you can't compare LTC to some of the inflated coins such as XRP and Solana, but it has managed to carve out a place for itself in the cryptocurrency sector. And if I am not wrong, Litecoin is the only other first-generation cryptocurrency (apart from Bitcoin) that is currently included in the top-50 list.