Hi,
Not necessarily, but it can be difficult.
Even with a statutory placement it can be hard afterwards. If your placement(s) for example are in a family support team, but then you want to work in an assessment team, it can be difficult to go straight into working in that area because you're likely to be dealing with 'higher end' issues, than you would have had in family support (in many cases the family support team are working on a CAF level, or Section 17).
I was lucky in regards to placements as my first was in a voluntary setting (adults) but my final placement was in a statutory children and families setting. I know a couple of people who had voluntary setting placements for both their first and second. The universities will generally say that they only need to provide you with a placement in two different settings - it could mean that you have 2 statutory, or 2 voluntary - it's very much down to chance, but when you're asked to complete your placement forms, you should specify that you would like a statutory placement (perhaps more so for the final one, as this carries more weight). You may be able to request that you organise your own placement, so this is something you could possibly look into.
Just out of curiosity, which uni are you looking at going to?