Starting allergens at 5 Months?

In Germany, where things are slow to change. Our pediatrician recommended we introduce solids at 5 months to introduce allergens bc I had childhood asthma and eczema and partner has eczema. Neither case is severe, baby also had a sprinkling of eczema, now resolved. The thing is the pediatrician insisted we do this with porridge/purees. The German standard is totally repulsive to me (pureed veg then you slowly add in fruit, then fish or meat, then canola oil and fruit juice!)

I want to do BLW with maybe some homemade purees and am pretty sure LO will need to be 6 months to show readiness. And then there's the WHO recommendation to EBF for first 6 months anyway. Do I just ignore the pediatrician? Should I start solids early to expose kiddo to allergens or just let him lap up a smidge of nut butter or milk or whatever and save the rest for when he's ready?

Feeling really nervous and conflicted bc I had my first asthma attack at 6 months after my dad gave me a chocolate lollipop (milk allergy? Idk)...I don't want to ignore medical advice but it just seems outdated and the pediatrician seems insistent that that's just how things are done here so there isn't much room to discuss.