Bitcoin may be technologically outdated, but the core value and original meaning of an inflation-resistant currency is the most important factor for us to believe.
Bitcoin is never outdated. Developers are constantly working on new BIPs. Can you please mention what features another crypto offer you that Bitcoin doesn't (Technically)?
Technically, Bitcoin has only 1MB of internal memory and transactions take longer to confirm. Other blockchains execute low-latency transactions almost instantly.
As I said Bitcoin is resistant to inflation because the difficulty increases and rewards deflate every 4 years.
Solutions that only upgrade third-party products such as Bitcoin wrappers and lightning networks offer significant improvements, but they are not used more often than performing regular transactions on the original chain.