The similar problem is with the old people stubbornly not leaving government and policy making jobs. Someone who is 70+ does not have the right to make a policy for a generation who is in 20s and such policy can be (potentially ie.g. climate change policies) badly implemented for years to come. Why 70 something are even allowed to run for an office, heck currently both presidential candidates are touching their 70s. Please go retire to Florida or spend time with your grand kids or travel the world.
Also, there is a large number of well off old population living in dense urban cities. Take Manhattan borough in NYC for example. The city is very unique and always bursting with opportunities. Say a twenty something moves to NYC after college to work for an ad agency or a famous designer or a start-up but limited funds force her to live in eastern Brooklyn just to make ends meet. She spends and waste 2+ hours everyday on useless commutes. If the rent would have been cheaper and more affordable in the Manhattan borough then more young people can live nearby to the opportunities and make better use of their time. At the end of the day it is the game of money. Whoever has more money is always in the lead, where the young ones don't get fair opportunities in order to get ahead in this game. Unless daddy and mommy loans you their city condo (which many do).
Also, well off old people do not (frequently) invest in order to create opportunities for younger generation. We don't hate you, we just want you to adhere to natural, sociological and economical cycles.