My point was about age not having much relevance with regards to either player & whether they should be selected or not whilst you started mentioning the impact of age in life and the collective; a whole different story.
The club are at a crossroads in that position with Auba, Broja, Lukaku, and now Fofana on the books. If rumours going around are to be believe, we'll be making moves for a worthy CF in the summer.
Whether Havertz can tear it up in a league were he plays in his ACTUAL position or have others doing the dirty work around him is neither here or there. If Bayern comes in the summer with a reasonable offer, get the deal done.