All through my 20s and into 30s, girlfriendnowwife and me, and our close circle of friends were all DINKS, so absolutely we're gonna have a good time when a bday comes around. Any gifts involved were just silly/gag gifts, and typically the good time consisted of drinking at someone's house, maybe go out to a bar. 3 of the group of about 10 all had bdays within a week in Feb. so there was something always planned.
My dad just celebrated his 65th by visiting us in Denver, and having his 3 sisters/husbands over for dinner. Lots of wine and good beer, and great time for every one.
I don't know what the hell is wrong with any of this.
This OP is an old bitter dude I guess.