I preboard my dad who can’t walk, I transfer him into his seat ahead of the whole plane seating passengers but he is the last to leave the plane as a trade off

I preboard my dad who can’t walk, I transfer him into his seat ahead of the whole plane seating passengers but he is the last to leave the plane as a trade off when they bring his wheelchair. Thankfully have not witnessed anyone pretending they can’t walk and leave first. They all have issues with their gait in my experiences in the US. Sure there might be some bad actors but it’s really sad if they are faking it having to be seen by the actually disabled folks who can probably tell. My dad can’t even use the restroom on the flight cause he can’t stand, it’s truly hell for wheelchair bound folks. They deserve all the help and accommodations they can get to travel and live a normal, rich and fulfilling life like the rest of us able bodied folks.