Bad ideas are bad, good ideas are good whether young or old. Peter Stockland comments:
Bad ideas in young heads are as bad as bad ideas in old heads. The issue is not the age at which those ideas enter our heads, but whether they become ideologically fixed and impervious to contradictory reason or experience. The question to be asked is not so much about the beliefs that those under 35 hold, but how, why, and when they give way to a more nuanced and more realistic understanding of the world.
Bold is mine, because that part matters. Are my ideas so fixed that they are impervious to reason and/or experience? I hope not.by