Because if this Amateur Radio has the ability to enhance international relations as does no other hobby. There are five types of licenses from Novice and No-code technician to Amateur Extra Class. Ages range for 5 to 95. These cover various technical electronics fundamentals, regulations and Morse code areas. Repeaters have had a great impact on radio over the last 20 years.
Repeaters are an ideal way of increasing the range of mobile and hand-held portables.
They are a local party line for hams. A Repeater is a well situated automatic retransmission station used to extend the range of other stations. Signals received are re-transmitted on second frequency usually from a mountain top location. There are many technical issues which need to be addressed to make this work. I won't go into them here.