My daughter is nearly 15 weeks old, the last few days when she's been in her bouncy chair she keeps pulling herself forward as if to try and sit up. She loves "sitting up" on your knee and has very good head control. She clearly wants to be more upright so it sounds as though she would love it in a bumbo I'm just concerned - do they help or hinder sitting unaided? Do babies become reliant in it rather than strengthen their own muscles? It's then lead me onto looking at highchairs, were obviously a long way off weaning (want to do BLW) so could I just get a highchair earlier for her to sit up in? Thanks in advance!x