I don't see where they are "struggling."
People need to cut their cloth. The lifestyle expectations of todays's 20-40 somethings is off the charts. And the tiresome "they had it so much easier" is ignoring the standard-of-living creep that has happened over the past 50 years.
Every woman in my extended family going back 100 years has worked out of the home their entire adult lives, one grandmother despite having six children. The latter raised them in a two-bedroom house, moving to a three-bedroom when the older girls left school and got jobs to contribute.
My mother was one of the six kids, in the 1950s/early 60s she lied about her age at 14 to get a waitress job in a cafe, and left school at 17 and worked as a secretary then did cleaning and such at night and on weekends to help raise her younger siblings. I don't think she had it easy. My dad did a stint in the RN and then from 20-32 worked a factory job for Ford and drove a lorry at night to earn extra $$. Both my parents lived at their parents' homes until they married, and then saved for several years before TTC so they could afford mum to take time off when I was born. They never got any sort of dole or handout. Their house until I was 12 was a 2BR, 1-bath 900 sq ft. With secondhand furniture. When they upgraded around 1980 the mortgage interest rates were double-digit.
How is that "having it easy" ? They earned everything they ever accumulated via hard work. And I might add that the daily standard of living was nothing like today's. One phone, one TV (black and white for the most part), no other tech, one shared old car (I think the longest my dad ran the same car was 24 years), no pets, no brand-new furniture, no dishwasher, tumble dryer later in life, no aircon, they didn't travel overseas till upward of age 50. As kids and teens we didn't have expensive extracurriculars; my only after-school activity from 15 onward was either babysitting or working in an office for pocket money.
Now young people expect travel, contact lenses, meat at any meal they fancy, attractively decorated and spacious houses, state-of-the-art white goods and appliances, lots of "activities" and "days out" with their kids, the list goes on.
Go back and live like people did in the 1950s, 60s and 70s for a year- it's quite possible if one has self-discipline - and then get back to us about how "easy" it was.