Why is USDT so expensive to send?

Could you please elaborate on why sending USDT is relatively costly? I've noticed that compared to other cryptocurrencies, the transaction fees for USDT tend to be significantly higher. Is this due to the underlying technology used by USDT, or is it a result of market forces and demand? Additionally, are there any strategies or methods that can be employed to reduce the transaction costs associated with sending USDT? Thank you for your assistance in clarifying this matter.