At my last job, one of my co-workers, a widower, within 6-8 years of retirement with about a $1M nest egg was talking about this subject. He said he was giving his son his inheritance now with college paid for, creature comforts, a place to live, etc., etc., basically setting his son up for success. Once retired, he was going to enjoy HIS nest egg.
Unfortunately, he passed last spring due to COVID complications in his late 50s. I sure hope he planned ahead just in case... $1M+, life insurance, real estate etc., can be a blessing or curse to a 20 year old.