It's actually more dangerous to not take risks especially in these times when everything is constantly changing. Doing the same thing all the time that is super risky. Because that for sure will not work out well in the long run! In the long run yes all will fail including our bodies. But at least we can have some fun while we are alive and try new stuff out!
Then we also have this thing how people that has been in something for a long time usually stop learning new skills! So newcomers can usually make fast gains and find new interesting opportunities that others miss out on because they keep doing the same as they always done!