The thing is, if he'd done the training, he could have been a celebrity whatever.
No doubt his parents' names and wealth got him into Parsons, which is extremely prestigious and a big tick for anyone's CV in the art world and an internship with Rankin, the same. If he'd stuck to it, or alternatively a proper culinary course and then restaurant training. He'd have had an easy 'in' to a high profile career where he could pick and choose how much work to do and still keep a public profile.
Mary McCartney learnt her craft and is a photographer (and cook) who's benefited from her name, but proved herself in her field. Stella similarly. The likes of the Roux family, or Jack Stein start with the name, but learn the trade thoroughly. Perhaps Buddy Oliver will keep on too, he's been doing his own cooking shorts. One of the Ramsay daughters did the same. Without their fathers they wouldn't have done it, but given the chances they actually delivered a decent end product.
Brooklyn's brother, Romeo, may not have got a go at professional football without his father's introduction, but at least he's serving some time at a junior level with a team's 'B' side, doing the hard yards, not wanting to be in Man U's starting 11 or throwing in the towel.
I understand that BB may not have found his real calling yet, but without some work ethic and staying power he's not likely to. I remember Jack Ramsay doing a programme where he went to live with another family for a short while. The lifestyles couldn't have been more different. Obviously that was for TV and was brief, but in the Marines he'll no doubt have had a lot of stick for his famous name and face, but it's a path he's chosen for himself and he's following it on his own merits. At the end of the day, that's what's going to bring fulfilment in life, having skill(s) that you've worked on and achieved rather than flitting from one thing to another and being ridiculed on social media.