Is it normal for Two Male Best Friends to be This Close?

Im 62 and I have two best friend, a marine who is 23 and a neighborhood kid who is 16 and I watched him grow up. I talk to both of my buddies every day, the 3 of us camp together, hunt together, hang out together. The teen stays with me when his parents travel, I take him to haircute, the doctor and school. He is like my own son/brother. When we hang out, we all crowd the couch to watch a game, or a scarey movie, in contact with each other, 16 falls asleep and drools on my shoulder. Ive taught him to fly airplanes, scuba dive, swim, shoot, and he just told me during a hug "thanks for teaching me how to be a man...". Guys bond close and hard and usually for life, its great to have someone to love, a special and deep love that doesnt involve sex, specially when the love is returned.