That's not my experience - it's only part and parcel of an aisle seat when the aisle is unusually narrow, as it was on the 777.
On the flight flight from SFO to AMS which was an A330 with a wider aisle, it was not a problem.
I have flown many miles over the years, almost exclusively in aisle seats, and never had this problem before. I think by and large people try to not bump into seats when they walk down the aisle - but, when the airline crams in more seats and narrows the aisle (as KLM has chosen to do and Delta has chosen not to do), this is not possible.
Originally Posted by
irishguy28
This is part and parcel of aisle seats - regardless of how spacious the aisle is.
If you want to sleep, take the window seat. This also prevents you from having to wake up and move everytime your rowmate(s) want to get up.