There is no doubt that learning a new language has its complications. The main one being that we can never directly translate from our native language into the second language. For example, we say in English I am hungry but if we make a direct translation in Spanish Estoy hambre, it doesn´t make any sense as the verb they use is Tener (to have) not Estar (to be) = Tengo hambre.
Learning a second language can slow cognitive ageing (the speed at which the mental activity of the brain ages). Being bilingual could delay the onset of dementia for several years.
When we are suggesting something, we are endorsing it as a promising idea only. There is no obligation on the third party to follow through. When we are recommending something, we are advising what should be done in a particular situation which would benefit the third party. It holds more weight than suggest and makes the receiver sit up and take note.