We took our pensions at 55 as annuities and SS at 62. Combined they cover all our essential expenses and most discretionary expenses. We try to live well on about half of what we could if we added in savings and retirement accounts. Plus, as I have posted in other threads, most years I find ways to make a fair bit extra in freebies, discounts, contests, credit card games, rewards programs, etc. as a side hobby. We have relatively low overhead in a very HCOL, partly through optimizing expenses / my hobbies and some through dumb luck like Prop 13 keeping our property taxes low, lifetime utility discounts from a former job perk, buying a house before the local real estate market went insane, $2 a month ACA plan and our kids getting 100% grants for college. I still enjoy buying gourmet mushrooms at 99 Cents Only for $4 a pound instead of the local Whole Foods for $16 a pound and investing the difference. Or getting my music free through Freegal from the library instead of paying Spotify a monthly fee.
We like having the diversified income sources between pensions, SS and investments and my hobby / expense optimizing income. By taking our pensions and SS early if we die early our adult kids will have more money in our estate when they are likely to need it more to buy homes or raise kids. We ran the numbers on what ages to take SS and pensions in my retirement spreadsheet with all different inflation and investments rates and decided early worked best for us.