So early 40s here, hired at Google after I turned 40 into a senior individual contributor role. My team has a healthy mix of greybeards, middle aged and younge

So early 40s here, hired at Google after I turned 40 into a senior individual contributor role. My team has a healthy mix of greybeards, middle aged and younger team members. There are some teams that definitely lean younger here and there are teams that lean older too. A lot of it seems to depend on the areas they are in and the projects they work on. Your assertions don't match my experiences at all here.