Nylon strings have less tension than steel strings and are therefore easier on the fingers.
They also produce a warmer, more mellow sound and may be preferred for certain genres of music, such as classical or folk guitar.
However, it is important to note that changing from steel to nylon strings may require some adjustments to the guitar, such as truss rod adjustments or a new nut or bridge.
If you are not experienced with guitar maintenance and adjustments, it is recommended that you take your guitar to a professional for the string change.