Ahaahha, I’m 27 years old and I play minecraft with my son and this is a pretty interesting game and it develops logic well, so you can worry. In addition, there are no bloody scenes and you can play it from the age of three. As for the servers, if you understand this, then you can easily create your own server and it will be completely free. If you have problems, you can easily buy a server for 50-60 dollars at
https://ggservers.com. I did just that and did not regret it. So if you want to spend time with your son, then this is a great option!