The big advantage of turning out a child like yourself is you can support them very well. A lot of top performers in sports, business, politics, etc. had a parent who did the same thing and was able to massively help them from a young age.

While that may be true, casting it as a binary choice is also overly simplistic - ie. how that differs from the extent to which any reasonably resourced and motivated parent could encourage talents in a child and/or find external teachers would remain a valid question. That said, professional specialisation is a cornerstone of civilization, but in an evolving global social reality driven by rapid technology change there is perhaps cause to question the traditional hominid evolutionary trick of stamping-down worldviews and practices known to the immediate parent generation; instead encouraging a somewhat broader first principles or generalist reframing for each successive generation. Probably education is headed this way. More episodic and cross disciplinary, less one size fits all formally programmed, less parent-generation connected, more present interconnected. Nurture will of course remain critically important, but for an increasingly earlier period of childhood within biological limits.

I mean... I always felt the opposite, and became frustrated (with myself and sometimes them) when my kids have developed in some of the same negative patterns (usually scholastic / work related) that I feel in myself.