Me and OH are in the process of moving in with each other.
OH is deaf and we use BSL (I already knew a far bit when we met) he can also lip read
Now my family has always made an effort to use BSL (luckily DParents knew a far bit already and SIL is 'fluent') My DNs (2 girls and 1 boy) have discovered it is fun to pick up words etc.
Now BIL has not made an effort at all to learn BSL or even use basic signs eg thank you, please, tea? etc the things you use all the time. Meaning when we are together OH is excluded or we have to 'translate' then reply while signing then translate for BIL what DP has said.
DP is use to this to some extent in RL but within my family it seems very very odd and alien to both him and me.
To some excent I can understand not learning completely when me and DP started going out, but he has been around for a bit we are moving in together now.
AIBU to expect him to learn?