Fewer commitments, large savings, large support network, and lots of learned wisdom. I don't see any disadvantage at starting a business at 20 nor at 50. 30, s

Fewer commitments, large savings, large support network, and lots of learned wisdom. I don't see any disadvantage at starting a business at 20 nor at 50. 30, seems to be the biggest problem since you have all the commitments and few resources.