Converting 2 bedroom to 3

[Gabriel Combs]

Wanting to take a 2 bedroom with a decent kitchen and small bathroom and turn it into a 3 bed with no dining room/eat in kitchen and thinking of maybe trying to make the small bathroom a little bigger. Is it worth it to make the bathroom larger since it would become a 3 bedroom? Also, do families prefer a dining room over a bedroom? Please give me your thoughts. Thank you!