French speaking nursery, English speaking parents - how long for 2.8 year old to be fluent?

[Rantmum]

To any MNers with a similar experience - we are moving to a French speaking area and ds will start nursery there. My ds will be 2.8 when he starts nursery and I was planning to put him in for 5 days, but on reflection wonder if this will be too much for him at this age. DH and I speak very poor french although we intend to take classes to brush up, so I had thought that maybe a daily dose of immersion at this age will ensure that he is fluent by the time "real" school starts - any thoughts? Will 3 days initially be enough under these circumstances?

bump, anyone?

hmm tbh unless it gets reinforced at home it could take longer. He should have reasonable colloquial French by school age although I think Ecole Maternelle is similar age to Reception here so that may only be a year to 18 months off. Answer is it is hard to say.Friend with 2 children born abroad , one wasn't fluent by 5 (had speech and language problems in mother tongue English anyway), now in an English speaking school, 2nd was fine and is still in local school system at 6. Another friend spent a year in France with her 3 who all have good French now (eldest particularly fluent and articulate).